One who does not marry, especially as a religious obligation

A. Bachelor

B. Celibate

C. Virgin

D. Recluse

Answer: Option B

Solution(By Examveda Team)

One word substitute is Celibate.

Bachelor: a man who is not and has never been married.
Celibate: a person who abstains from marriage and sexual relations.
Virgin: a person who has never had sexual intercourse.
Recluse: a person who lives a solitary life and tends to avoid other people.