There are two statements:
Statement I: Caste groups were endogamous.
Statement II: Marriage was generally restricted to members of the same caste group.
Answer & explanation
Correct answer: option 1
The correct answer is Option 1: Both statements are correct and Statement II explains Statement I.
Endogamy refers to the practice of marrying within one's own social group. Therefore, the restriction of marriage to members of the same caste group is precisely what is meant by caste endogamy.
Statement I: Caste groups were endogamous. — Correct.
Statement II: Marriage was generally restricted to members of the same caste group. — Correct. This is the defining feature of endogamy.