Afriend tells you he's having flashbacks and vivid nightmares of past events. in addition, he's feeling emotionally numb. you might be concerned that he needs to be checked for possible

a. ptsd.
b. dsm.
c. gad.
d. ocd.

The correct answer is option A, that is, PTSD.  

PTSD or post-traumatic stress disorder is the condition that illustrates an extreme and on-going emotional reaction, which occurs due to coming in contact with trauma or extreme stress. Clinically, such incidents comprise threatened or actual death, a threat to physical or psychological integrity, or any kind of serious physical injury.  

PTSD is considered to be mainly an anxiety disorder and should not be confused with usual adjustment and grief post-traumatic events. The symptoms of PTSD comprises flashbacks, nightmares, insomnia, emotional detachment, irritability, loss of appetite, anxiety, and clinical depression.  

answer; i believe the answer is (polygenic inheritance;