Which Statement Concerning the Sympathetic and Parasympathetic Branches of the Nervous

Which statement concerning the sympathetic and parasympathetic branches of the nervous system is true?

A) The sympathetic system controls external stimuli, while the parasympathetic system controls internal stimuli.
B) The sympathetic system generally produces increased physical activity, while the parasympathetic system produces a decrease in physical activity.
C) Both nervous systems stimulate the activities of many organs.
D) Both nervous systems release norepinephrine.
E) The sympathetic system is under voluntary control, and the parasympathetic system is under involuntary control.