Select the option that can be used as a one-word substitute for the given group of words.
A life history of a person written by himself

Correct option is D

Correct one-word substitute:
Autobiography – A life history of a person written by that person himself
Hindi meaning – (आत्मकथा)
Example: Mahatma Gandhi’s "The Story of My Experiments with Truth" is an autobiography.
Meanings of all options:
(a) Biography – A written account of someone’s life written by another person
Hindi – (जीवनी)
(b) Epic – A long narrative poem, often about heroic deeds and events
Hindi – (महाकाव्य)
(c) Story – A narrative, either true or fictitious, designed to interest or amuse
Hindi – (कहानी)
(d) Autobiography – A self-written account of one’s own life
Hindi – (आत्मकथा)
Correct answer is (d) Autobiography, as it precisely defines a life story written by the person himself.