Correct option is D
The correct answer is: (D) M N Roy
M N Roy (Manabendra Nath Roy) was a prominent Indian revolutionary and political theorist.
He was one of the first to openly support Marxist and communist ideologies in India.
Roy played a pioneering role in the labour movement and was instrumental in the formation of the Communist Party of India (CPI) in 1925.
He was also a key figure in the Indian National Congress and later in the communist movements worldwide, particularly in Mexico and Russia.
M N Roy was one of the earliest leaders to combine the fight for independence with the ideas of socialism and communism.
He is also known for his contribution to the Hindu reformist movements and for writing the "History of the Communist Party of India".