Option 1 -> Lord Cornwallis was Governor-General of Bengal from 1786-1793 and introduced the Permanent Settlement in 1793.
Option 2 -> Lord William Bentinck served as Governor-General from 1828-1835, much later than the Permanent Settlement.
Option 3 -> Lord Warren Hastings was the first Governor-General (1773-1785), but the Permanent Settlement came after his tenure.
Option 4 -> Lord Wellesley was Governor-General from 1798-1805, after the Permanent Settlement was already introduced.
Hence, Option 1: Lord Charles Cornwallis -> The Permanent Settlement of 1793 was a landmark land revenue system that fixed land revenue in perpetuity with zamindars, and it was implemented during Cornwallis's tenure as Governor-General of Bengal -> correct