Stephen wanders about while remaining asleep.What is Stephen's condition called

A)  apnea 
B)  somnambulism 
C)  narcolepsy 
D)  agnosia

Somnambulism

Somnambulism, also known as sleepwalking, is a disorder that involves walking or performing other activities while appearing to be asleep.

Wandering

An aimless or undirected movement or thought pattern.

Asleep

A state of rest where consciousness is suspended, and the body undergoes recovery and growth processes.