Gannon Regularly Wakes Up at Night from a Nightmare in Which

Multiple Choice

Gannon regularly wakes up at night from a nightmare in which he is trapped in a mudslide.He cannot get over witnessing the tragedy that killed his parents and baby brother more than 20 years ago.He is plagued by guilt because he was the sole survivor.Gannon has:

A) agoraphobia.
B) dissociative amnesia.
C) generalized anxiety disorder.
D) post-traumatic stress disorder.