Explanation:

- Correct Answer: Option 3, Lord Canning

- Lord Canning was the Governor-General of India during the Sepoy Mutiny of 1857, which is also known as the First War of Indian Independence. His tenure saw this major uprising against British rule.

- Option 1, Lord Wellesley:

- Lord Wellesley served as Governor-General from 1798 to 1805. He is known for his expansion of British rule in India through military conquest.

- Option 2, Lord Dalhousie:

- Lord Dalhousie served from 1848 to 1856. His policies, including the Doctrine of Lapse, were among the factors that led to the unrest culminating in the 1857 uprising.

- Option 4, Lord Bentinck:

- Lord Bentinck was Governor-General from 1828 to 1835. He is recognized for social reforms such as the abolition of sati.