The correct answer is option 3, Dadabhai Naoroji. He was the first Indian to be elected as a member of the British House of Commons. Naoroji was a prominent Indian nationalist and social reformer who played a significant role in India`s struggle for independence. He was elected as a Liberal Party candidate from the Finsbury Central constituency in the United Kingdom in 1892. Naoroji focused on advocating for India`s interests in the British Parliament, addressing issues such as poverty and the drain of wealth from India. His election to the British House of Commons was a milestone in Indian political history, as it paved the way for future Indian politicians to participate in the British political system.