In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
One who walks in sleep

Options

A. somniloquist
B. egoist
C. somnambulist
D. altruist

Answer

C

Explanation

somnambulist (N.) : someone who walks about in sleep somniloquist (N.) : someone who talks while asleep
egoist (N.): a person who thinks he/she is better than other people and who thinks and talks too much about himself/herself
altruist (N.) : someone who makes charitable donations in tended to increase human well being