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).
Q: Context: In physical geography, tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons. The term "tundra" comes through Russian  ("tûndra") from the Kildin Sami word "tndâr" "uplands", "treeless mountain tract". There are three types of tundra: Arctic tundra, alpine tundra, and Antarctic tundra. In tundra, the vegetation is composed of dwarf shrubs, sedges and grasses, mosses, and lichens. Scattered trees grow in some tundra regions. The ecotone (or ecological boundary region) between the tundra and the forest is known as the tree line or timberline., Vancouver, officially the City of Vancouver, is a coastal seaport city on the mainland of British Columbia, Canada, and the most populous city in the province., Sir William Stanley Baker (28 February 192828 June 1976) was a Welsh actor and film producer., Campbell 's Kingdom is a 1957 British adventure film directed by Ralph Thomas , based on the 1952 novel of the same name by Hammond Innes . The film stars Dirk Bogarde and Stanley Baker , with Michael Craig , Barbara Murray , James Robertson Justice and Sid James in support . The story is set in Alberta , Canada , and largely follows the principles of the Northwestern genre of film - making ., Sir Derek Jules Gaspard Ulric Niven van den Bogaerde, known as Dirk Bogarde (28 March 1921  8 May 1999), was an English actor and writer. Initially a matinée idol in films such as "Doctor in the House" (1954) for the Rank Organisation, he later acted in art-house films. In a second career, he wrote seven best-selling volumes of memoirs, six novels and a volume of collected journalism, mainly from articles in "The Daily Telegraph"., Canada (French: ) is a country in the northern half of North America. Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean, covering , making it the world's second-largest country by total area and the fourth-largest country by land area. Canada's border with the United States is the world's longest land border. The majority of the country has a cold or severely cold winter climate, but southerly areas are warm in summer. Canada is sparsely populated, the majority of its land territory being dominated by forest and tundra and the Rocky Mountains. About four-fifths of the country's population of 36 million people is urbanized and live near the southern border. Its capital is Ottawa, its largest city is Toronto; other major urban areas include Montreal, Vancouver, Calgary, Edmonton, Quebec City, Winnipeg and Hamilton., The Rocky Mountains, commonly known as the Rockies, are a major mountain range in western North America. The Rocky Mountains stretch more than from the northernmost part of British Columbia, in western Canada, to New Mexico, in the southwestern United States. Within the North American Cordillera, the Rockies are somewhat distinct from the Pacific Coast Ranges and the Cascade Range and Sierra Nevada which all lie further to the west., Doctor in the House is a 1954 British comedy film directed by Ralph Thomas and produced by Betty Box. The screenplay, by Nicholas Phipps, Richard Gordon and Ronald Wilkinson, is based on the novel by Gordon, and follows a group of students through medical school., Subject: campbell's kingdom, Relation: producer, Options: (A) betty box (B) columbia (C) film producer (D) mountain (E) stanley baker
A:
betty box