A sudden loss of memory is a symptom of

A) bipolar disorder.
B) a dissociative disorder.
C) panic disorder.
D) obsessive-compulsive disorder.

Dissociative Disorder

is a mental disorder characterized by a disconnection between thoughts, identity, consciousness, and memory.

Sudden Loss

The unexpected and immediate loss of something significant, such as a loved one, causing emotional distress.

Memory

The faculty by which the mind stores and remembers information, crucial for learning and functioning.