Instructions: In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).
Input: Context: EasyJet (styled as easyJet) is a British airline, operating under the low-cost carrier model, based at London Luton Airport. It operates domestic and international scheduled services on over 820 routes in more than 30 countries. easyJet plc is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index. easyGroup Holdings Ltd (the investment vehicle of the airline's founder Sir Stelios Haji-Ioannou and his family) is the largest shareholder with a 34.62% stake (as of July 2014). It employs nearly 11,000 people, based throughout Europe but mainly in the UK., British Aviation Services Limited (Britavia) was an early post-World War II airline holding company and air transport operator that could trace its roots back to 1946. Its main activities included trooping, inclusive tour (IT) and worldwide passenger and freight charter services. British Aviation Services' first investment in a British independent airline occurred in 1946, when it acquired a minority interest in Silver City Airways. Silver City Airways operated the world's first cross-Channel air ferry service on 13 July 1948. It subsequently became British Aviation Services' biggest operating division. In 1953, British Aviation Services took over the independent airline Air Kruise. The same year, BAS Group also took control of Aquila Airways, the last commercial flying boat operator in the United Kingdom. The completion of these acquisitions by mid-1954 resulted in a reorganisation of the British Aviation Services group, with British Aviation Services Ltd (BAS Group) becoming the group's holding company and Britavia one of its operating subsidiaries. By the late 1950s, BAS Group became Britain's largest independent airline operator. Its numerous operating divisions included Britavia's Hermes Division at Blackbushe Airport and Aquila Airways's Flying Boat Division at Hamble near Southampton. The former concentrated on trooping services and inclusive tours while the latter provided scheduled services to Portugal, the Canary Islands and Italy. In 1962, BAS Group merged with British United Airways (BUA), which by that time had replaced BAS as the UK's largest independent airline operator., Hunting-Clan Air Transport was a wholly private, British independent airline that was founded in the immediate post-World War II period. It began trading on January 1, 1946 as Hunting Air Travel Ltd. It was a subsidiary of the Hunting Group of companies, which had come from the shipping industry and could trace its history back to the 19th century. The newly formed airline's first operating base was at Bovingdon Airport in Southeast England. Its main activities were contract, scheduled and non-scheduled domestic and international air services that were initially operated with Douglas Dakota and Vickers Viking piston airliners from the company's Bovingdon base. A change of name to Hunting Air Transport occurred in 1951. By that time, the airline had emerged as one of the healthiest and most securely financed independent airlines in Britain. In October 1953, the firm's name changed to Hunting-Clan Air Transport, as a result of an agreement between the Hunting Group and the Clan Line group of companies to invest £500,000 each in a new company named Hunting-Clan Air Holdings Ltd, the holding company for the combined group's air transport interests. Apart from Hunting-Clan Air Transport itself, this included Field Aircraft Services Ltd, the Hunting group's aircraft maintenance arm. In 1960, Hunting-Clan Air Transport merged with the Airwork group to form British United Airways (BUA)., Silver City Airways was a private, British independent airline formed in 1946. The name "Silver City" was derived from the eponymous Australian mining town at Broken Hill, where "The Zinc Corporation" was headquartered. Silver City's first commercial flight departed London Heathrow for Sydney via Johannesburg in late 1946. The following year, Silver City leased its first Bristol Freighter, moved its base to Blackbushe and participated in the airlift of Hindu and Muslim refugees between Pakistan and India. In 1948, control of Silver City passed from the Zinc Corporation to British Aviation Services. In July of that year, the airline inaugurated the world's first air ferry service across the English Channel between Lympne Airport and Le Touquet Airport. In 194849, Silver City participated in the Berlin Airlift. In 1949, it established a French sister airline., Southwest Airlines Co. is a major U.S. airline, the world's largest low-cost carrier, headquartered in Dallas, Texas., British United Airways (BUA) was a private, independent British airline formed as a result of the merger of Airwork Services and Hunting-Clan Air Transport in July 1960, making it the largest wholly private airline based in the United Kingdom at the time. British and Commonwealth Shipping (B&C) was the new airline's main shareholder., Sir Frederick Alfred Laker (6 August 1922  9 February 2006) was an English airline entrepreneur, best known for founding Laker Airways in 1966, which went bankrupt in 1982. Known as "Freddie Laker", he was one of the first airline owners to adopt the "no-frills" airline business model that has since proven to be very successful worldwide with companies such as Southwest Airlines, Ryanair, easyJet, AirAsia and WestJet., WestJet Airlines Ltd. is a Canadian airline that began as a low-cost alternative to the country's competing major airlines. WestJet provides scheduled and charter air service to 100 destinations in Canada, the United States, Europe, Mexico, Central America and the Caribbean. Founded in 1996, it is currently the second-largest Canadian air carrier, behind Air Canada, operating an average of 425 flights and carrying over 45,000 passengers per day. In 2013, WestJet carried 18.5 million passengers, making it the ninth-largest airline in North America by passengers carried.
WestJet is a public company with more than 10,000 employees, is non-unionized and is not part of any airline alliance. It operates three variants of the Boeing 737 Next Generation family, as well as Boeing 767 aircraft, on select long-haul routes. Its subsidiary WestJet Encore also operates the Bombardier Q400. The airline's headquarters is located adjacent to the Calgary International Airport., Channel Air Bridge was a private British independent airline specialising in cross-Channel vehicle - cum - passenger ferry services . Freddie Laker started Channel Air Bridge as a sister airline of Air Charter on a provisional basis in 1954 . Operations commenced in 1955 . In 1958 , Channel Air bridge took over Air Charter 's vehicle ferry services . In 1959 , both Channel Air Bridge and its sister airline Air Charter became part of the Airwork group . In 1960 , Airwork joined with Hunting - Clan to form British United Airways ( BUA ) . In 1962 , BUA reorganised its vehicle ferry operations by merging Channel Air Bridge with Silver City Airways . This resulted in the creation of British United Air Ferries in 1963 ., Subject: channel air bridge, Relation: parent_company, Options: (A) air canada (B) airwork services (C) british aviation services (D) british united airways (E) easyjet (F) southwest airlines (G) westjet
Output:
airwork services