The correct option is A Hector Munro
The Battle of Buxar was
fought on 22 October 1764 between the forces under the command of the British East
India Company led by Hector Munro and the combined army of Mir Qasim, the Nawab
of Bengal; the Nawab of Awadh; and the Mughal King Shah Alam II. The battle
fought at Buxar, a small fortified town within the territory of Bengal,
located on the bank of the Ganges river about 130 km west of Patna, was a
decisive victory for the British East India Company.