This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
Which of the following is NOT a clinical feature of post - traumatic stress disorder (PTSD)? 
Select and explain. 
A. Flashbacks, B. Hyperarousal, C. Hallucinations, D. Emotional numbing
C: Hallucinations
Answer: C: Hallucinations 
Explanation: Clinical features of PTS :

Hyperarousal : Anxiety, irritability, insomnia, poor concentration, hypervigilance.
Intrusions : Re-experience of a traumatic event in distressing thought, or dream (nightmares), flashbacks.
Avoidance : Avoidance of stimulus (thoughts, activities) that arouse recollection of trauma.
Other : Emotional numbing, emotional detachment, the absence of emotional responsiveness (anhedonia), derealization, depersonalization, depression & hopelessness, guilt or shame or self - blame, dissociative amnesa.