This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
Which of the following cranial nerves do not carry parasympathetic outflow 
Select and explain. 
A. Occulomotor, B. Trochlear, C. Facial, D. Glossopharyngeal
B: Trochlear
Answer: B: Trochlear 
Explanation: Parasympathetic cranial nerves are 3-occulomotor 7-facial 9-glossopharyngeal 10-vagus Refer kDT 7/e p78