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

Options

A. obsession
B. hallucination
C. somnambulism
D. somniloquism

Answer

C

Explanation

somnambulism (N.) : walking in sleep obsession (N.) : an idea/ thought that continually preoccupies/ intrudes on a person.s mind .