William Bentinck, the Governor-General of India from 1828 to 1835, played a significant role in reforming Hindu society by suppressing and abolishing social evils. However, one of the options provided, option 4 - Slavery, was not included in his reforms.

Option 1 - Sati: Bentinck actively worked towards the abolition of the practice of Sati, which involved the immolation of widows on the funeral pyre of their husbands.

Option 2 - Infanticide: Bentinck also sought to eradicate the practice of female infanticide, which involved the killing of newborn girls due to various societal reasons, such as gender discrimination.

Option 3 - Thugi: Another social evil that Bentinck tackled was Thugi, a notorious criminal network known for its highway robberies and murders. He initiated stringent measures to suppress and eventually eliminate this organized crime system.

Option 4 - Slavery: Although Bentinck made significant contributions towards social reform, particularly in the areas of Sati, infanticide, and Thugi, slavery was not included in his agenda. Slavery was a complex issue in British India, and it took several more decades and efforts to fully address and abolish the practice.

Therefore, the correct