Salina was terrified during the san francisco earthquake of 1989 (who wouldn't for a couple of weeks after, she did not sleep well or feel comfortable inside a building. however, gradually the fears diminished, and they disappeared within a month. her reaction to the earthquake would most likely be diagnosed as a(n): panic attack. phobic reaction. acute stress disorder. posttraumatic stress disorder ( true or false )

The correct answer is - acute stress disorder.  

Explanation:

Acute stress disorder is a disorder that occurs due to exposure to an extremely traumatic situation such as death threats or serious accidents. It is characterized by developing dissociation and severe anxiety with sleeplessness, fear and other symptoms however it ends within month.

Acute stress is one of common anxiety disorder and occurs due to the traumatic past.

Thus, the correct answer is - acute stress disorder.