Select the option that can be used as a one-word substitute for the given group of words.
Someone devoted entirely to religion

Correct option is C

The correct option is (C).

Explanation: The correct one-word for the given group of words is Devotee. A devotee is a person who is very interested in and enthusiastic about someone or something, especially a person who is strongly devoted to a particular religion or god. (भक्त)
Example: Thousands of devotees gathered at the temple for the morning prayers.

Meanings of the given other options:

• Ascetic: A person who practices severe self-discipline and abstention from all forms of indulgence, typically for religious reasons. (तपस्वी)
• Monk: A member of a religious community of men typically living under vows of poverty, chastity, and obedience. (मठवासी / भिक्षु)
• Zealot: A person who is fanatical and uncompromising in pursuit of their religious, political, or other ideals. (कट्टरपंथी)