Answer:
c. It is unusual for people with PTSD to become calm.
Explanation:
Posttraumatic stress disorder is an abnormal mental health condition in which individuals that have experienced or witnessed traumatic and distressful events sill become traumatized after several months, as a result of their inability to recover from such traumatic events after months. Symptoms include, intense anxiety and emotional distress, uncalmness, withdrawal from others and situations, nightmares, flashbacks etc.
It is unusual for someone with this disorder to be calm .