Michael Notices That Every Time He Gets What He Calls

Michael notices that every time he gets what he calls an "adrenalin rush," his heart rate and pulse quicken and he feels a surge of energy. He also notices that lately it takes his body longer than normal to return to feeling calm and normal. What might explain Michael's delay in coming down from his "adrenalin rush"?

A) His sympathetic nervous system might be too slow.
B) Michael's parasympathetic nervous system may not be activating as quickly as usual.
C) Michael's somatic nervous system might be interfering.
D) Michael's parasympathetic nervous system may be overly active.