Who among the following was associated with the suppression of Thugs?

1. The Thugs (or Thuggee) were organized gangs of professional robbers and murderers who operated in India for centuries, particularly notorious during the early 19th century. 2. The British administration launched a campaign to eradicate Thuggee in the 1830s under the Governor-General Lord William Bentinck. 3. Major William Henry Sleeman (later Sir William Sleeman) was appointed superintendent of the operations against the Thugs in 1835. 4. Captain Sleeman played the most crucial role in the systematic suppression of Thugs through intelligence gathering, arrests, trials, and convictions, effectively eliminating the cult by the 1840s.