To answer this question, we need to understand the historical context of British rule in Bengal.
The correct answer is D) Nawab Siraj-ud-Daulah.
During the 18th century, the British East India Company gradually gained influence and power in Bengal. In 1756, the Nawab of Bengal, Siraj-ud-Daulah, attacked and captured the British trading post in Calcutta (now Kolkata) in what is known as the Black Hole of Calcutta incident. This event led to the beginning of the British military campaign to establish their rule in Bengal.
In response to the attack on Calcutta, the British East India Company, under the leadership of Robert Clive, launched a military expedition against Siraj-ud-Daulah. The decisive battle took place on June 23, 1757, at Plassey (now Palashi), where Siraj-ud-Daulah's forces were defeated by the British. This victory allowed the British to establish their political and economic control over Bengal, marking the beginning of British rule in the region.
Therefore, the correct answer is D) Nawab Siraj-ud-Daulah, who was defeated by the British to establish their rule in Bengal.