Choose the correct one-word substitute for:
‘A person who abstains from all forms of indulgence’.

Correct option is A

The correct one-word for the given group of words is (a) Ascetic.
An ascetic is a person who practises strict self-discipline and avoids pleasures/indulgences (especially physical comforts) for spiritual, moral, or personal reasons. (Hindi meaning: तपस्वी / संन्यासी / विरक्त व्यक्ति)
Example: The monk lived an ascetic life, avoiding luxury and comfort.
Meanings of the given other options:
· (b) Agnostic: A person who believes that the existence of God cannot be known or proved (Hindi: अज्ञेयवादी)
· (c) Mystic: A person who seeks spiritual truths through meditation or mysterious experiences (Hindi: रहस्यवादी / अध्यात्मिक साधक)
· (d) Skeptic: A person who doubts or questions accepted ideas; not easily convinced (Hindi: संशयवादी)