The question asks to identify a historian who meets specific criteria: educated at Oxford, practiced as an advocate, and conducted research aimed at reviving national consciousness based on India's ancient heritage.
The other historians listed, while significant figures in Indian historiography, do not fully match all the specific criteria mentioned (Oxford education, advocacy profession, and the primary motivation described).
Therefore, K.P. Jaiswal is the historian described.
Who was the first woman Prime Minister in the world?
Who is known as the 'Father of Economics'?
Which American President was assassinated in a cinema theatre?
Which one of the following options does not match?