Consider the following statements about Kinship, Caste and Class in early societies :
1. The Mahabharata is a colossal epic containing norms for various social groups.
2. The Critical Edition project revealed only common elements across Sanskrit manuscripts of the Mahabharata.
3. Dharmasutras and Dharmashastras recognised eight forms of marriage, with the first four considered "good".
4. The practice of a woman having several husbands is known as polygyny.