The correct option is A Dr. B.R. Ambedkar
Dr. Bhim Rao Ambedkar also was known as Babasaheb Ambedkar was appointed as chairman of the Drafting Committee of the Constituent Assembly which was entrusted with the responsibility of preparing the Constitution. He was a renowned public figure, a social reformer, one politician and a jurist. He was given Union Law Portfolio in the First Cabinet of Independent India. He advocated for bridging the gaps between people and stood for equality for all.