This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: A.N.S., Subject name: Pharmacology
[{'content': 'Which of the following cranial nerves does not carry parasympathetic outflow? \nSelect and explain. \nA. Oculomotor, B. Trochlear, C. Facial, D. Glossopharyngeal', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (B) Trochlear(Ref: Katzung 11/e p78; KDT 8th/e p105)Parasympathetic cranial nerves are III (oculomotor), VII (facial), IX (glossopharyngeal) and X (vagus).', 'role': 'assistant'}]