What does the term "atrocity" refer to under the Scheduled Castes and the Scheduled Tribes (Prevention of Atrocities) Act, 1989?

Any act of discrimination against Scheduled Castes and Scheduled Tribes

Any offence listed under the Act committed against Scheduled Castes and Scheduled Tribes under Section 3 of the Act

Any form of violence or abuse against Scheduled Castes and Scheduled Tribes under Section 5 of the Act

Any form of social or economic exploitation of Scheduled Castes and Scheduled Tribes under Section 6 of the Act