Which Factors Differentiate the Diagnosis of PTSD from the Diagnosis

Which factors differentiate the diagnosis of PTSD from the diagnosis of adjustment disorder (AD) ?

A) PTSD results from exposure to an extreme traumatic event, whereas AD results from exposure to "normal" daily events.
B) AD results from exposure to an extreme traumatic event, whereas PTSD results from exposure to "normal" daily events.
C) Depressive symptoms occur in PTSD and not in AD.
D) Depressive symptoms occur in AD and not in PTSD.