Mark's Mother Passed Away Unexpectedly

Multiple Choice

Mark's mother passed away unexpectedly. Since her death two months earlier, he has been unable to function at school, has lost interest in participating in extracurricular activities, and becomes easily agitated. Mark may be exhibiting the symptoms of which disorder?

A) Adjustment disorder
B) Acute stress disorder
C) Posttraumatic stress disorder
D) Bereavement disorder