This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
Sympathetic stimulation causes 
Select and explain. 
A. Pupillary constriction, B. Contraction of bladder detrusor, C. Bronchial smooth muscle contraction, D. Vasoconstriction of skin and mucus membranes
D: Vasoconstriction of skin and mucus membranes
Answer: D: Vasoconstriction of skin and mucus membranes 
Explanation: Sympathetic stimulation causes vasoconstriction in all blood vessels except those in skeletal muscles. And causes pupillary dilatation, bronchial smooth muscle dilation, relaxation of detrussor muscle of bladder Ref: Ganong&;s review of medical physiology; 23rd edition; pg:556