This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': 'All of the following neurotransmitters are suspected of being involved in the pathophysiology of schizophrenia except -a) Prostaglandins E b) Norepinephrinec) Ascorbic acidd) 5-HT \nSelect and explain. \nA. a, B. ac, C. ad, D. b', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]