The practice of a man having several wives is called _____.

Polygyny

The correct answer is Option (3) → Polygyny

Endogamy refers to marriage within a unit – this could be a kin group, caste, or a group living in the same locality.

Exogamy refers to marriage outside the unit.

Polygyny is the practice of a man having several wives.

Polyandry is the practice of a woman having several husbands.