Information:  - The Norwegian Employers' Confederation (NAF) was an employers' organisation in Norway.  - Oslo is the capital and the most populous city in Norway. It constitutes both a county and a municipality. Founded in the year 1040, and established as a "kaupstad" or trading place in 1048 by Harald Hardrada, the city was elevated to a bishopric in 1070 and a capital under Haakon V of Norway around 1300. Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 and with Sweden from 1814 to 1905 reduced its influence. After being destroyed by a fire in 1624, the city was moved closer to Akershus Fortress during the reign of Christian IV of Denmark and renamed Christiania in his honour. It was established as a municipality ("formannskapsdistrikt") on 1 January 1838. Following a spelling reform, it was known as Kristiania from 1877 to 1925, at which time its original Norwegian name was restored.  - Norges Statsbaner AS, trading as NSB AS and known in English as the Norwegian State Railways, is a government-owned railway company which operates most passenger train services in Norway. Owned by the Norwegian Ministry of Transport and Communications, it is also engaged in real estate through Rom Eiendom, bus transport through Nettbuss, cargo trains through CargoNet and Swedish train transport through Tågkompaniet. NSB transported 52 million train passengers and 104 million bus passengers in 2009. The current company was established on 1 December 1996, when the former Norwegian State Railways (18831996) was split into the new NSB, the infrastructure company the Norwegian National Rail Administration and the Norwegian Railway Inspectorate. In 2002 the freight operations were split to the subsidiary CargoNet, and the maintenance department became Mantena.  - Standards Norway (SN) is the main standards organization of Norway. It claims responsibility for all standardization areas except for electrotechnical and telecommunication issues. Standards Norway holds the right to the trade mark Norwegian Standard and represents the country of Norway in CEN and ISO. Its headquarters are located at Lilleaker in the western part of Oslo.  - Eivind Heiberg ( 29 November 1870 -- 2 November 1939 ) was a Norwegian engineer and railway director . He is known as the chairman of Skabo Jernbanevognfabrik from 1899 to 1924 , the Federation of Norwegian Manufacturing Industries from 1906 to 1912 , the Norwegian Employers ' Confederation from 1912 to 1917 , the Norwegian State Railways from 1924 to 1938 and Standards Norway from 1924 to 1934 .    Given the information above, choose from the list below the object entity that exhibits the relation 'employer' with the subject 'eivind heiberg'.  Choices: - capital  - norges statsbaner as  - norwegian employers ' confederation
A:
norges statsbaner as