One absorbed in his own thoughts and feelings rather than in things outside

A. Scholar

B. Recluse

C. Introvert

D. Intellectual

Answer: Option C

Solution(By Examveda Team)

One word substitute is Introvert.

Scholar: a specialist in a particular branch of study, especially the humanities.
Recluse: a person who lives a solitary life and tends to avoid other people.
Introvert: a person predominantly concerned with their own thoughts and feelings rather than with external things.
Intellectual: a person possessing a highly developed intellect.