Answer:
PTSD
Step-by-step explanation:
Post-traumatic stress disorder (PTSD) can be defined as the mental state of a person whose thoughts are constantly triggered by traumatic events that he/she has either experienced or witnessed. The symptoms of this disorder include anxiety, depression, flashbacks, nightmares, and images of those events that keep on triggering in the mind of the person.
In the given case, Carla is suffering from the post-traumatic stress disorder. She has been sexually assaulted 6 months ago, of which images and thoughts keep on bothering her. This has caused her extreme and constant stress. These are the symptoms of PTSD that she is facing.
Thus PTSD is the correct answer.