Final answer:
Dadabhai Naoroji was the B)first Indian to serve in the British Parliament, making a remarkable achievement for Indian representation.
Step-by-step explanation:
One of Dadabhai Naoroji's major accomplishments was that he was the first Indian to serve in the British Parliament. Dadabhai Naoroji, known as the "Grand Old Man of India," was not only a prominent figure in the struggle for Indian autonomy but also made history when he was elected to the British House of Commons as a member of the Liberal Party. This was a monumental accomplishment considering the prevailing conditions and dynamics of the colonial era, marking an important milestone for the representation of Indians in British political structures.