Which of the Following Is a Key Feature of Posttraumatic

Which of the following is a key feature of posttraumatic stress disorder (PTSD) ?

A) Increase in the brain activity in the hippocampus while performing a verbal memory task
B) Lack of connectivity among the key regions involved in emotional processing, such as the prefrontal cortex and amygdala
C) Inability to recover from or quiet a hypothalamic-pituitary axis excitation
D) Activation of the circuit involving the anterior cingulate cortex (ACC) , the caudate, and the limbic structures