Custom of having many wives

The correct answer is C. Polygamy.

Polygamy is the practice of having multiple spouses. It is a form of plural marriage, which also includes polyandry, the practice of having multiple husbands. Polygamy is a controversial topic, and its legality varies by country.

Monogamy is the practice of having one spouse. It is the most common form of marriage in the world.

Bigamy is the practice of having two spouses at the same time. It is illegal in most countries.

Matrimony is the state of being married. It is a legal and social union between two