单项选择题

The attention of the public was first drawn to the dangers threatening the great old houses and castles of Britain by the death of lord Lothian, who left his great seventeenth - century house to the Trust together with the 4,500 -acre park and estate surrounding it. This gift attracted wide publicity and started the Trust’s" Country House Scheme". Under this scheme, with the help of the Government and the general public, the Trust has been able to save and make accessible to the public about one hundred and fifty of these old houses, usually at a very small charge.
Who was Lord Lothian

A. He was a government official.
B. He was a seventeenth -century noble.
C. He was the owner of a seventeenth - century house.
D. He was the founder of the National Trust in Britain.