Ray Has the Diagnosis of Acute Stress Disorder; Bob Has

Ray has the diagnosis of acute stress disorder; Bob has been diagnosed as suffering from posttraumatic stress disorder.What is a major difference in their conditions?

A) Bob has had symptoms for longer than Ray has had symptoms.
B) Ray's symptoms are the result of a social stressor,not a natural stressor.
C) Bob's symptoms involve a greater level of autonomic nervous system activation.
D) Ray is likely to have more trouble sleeping than Bob,who is more likely to have appetite difficulties.