The correct option is A William Bentinck
Raja Ram Mohan Roy's campaign against Sati was quite successful, as the Governor-General William Bentinck abolished the practice of Sati in 1829. After Sati was banned, he also opposed polygamy, and established schools for educating the women of the society. Raja Ram Mohan Roy died in 1833 and his work was carried on by Maharishi Debendranath Tagore.