Walking in sleep

A. Somniloquism

B. Somnambulism

C. Obsession

D. Hallucination

Answer: Option B

Solution(By Examveda Team)

One word substitute is Somnambulism.

Somniloquism: the tendency to talk in one's sleep.
Somnambulism: sleepwalking.
Obsession: the state of being obsessed with someone or something.
Hallucination: an experience involving the apparent perception of something not present.