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: Pharmacology
[{'content': 'Carisoprodol activation forms which of the following metabolites: \nSelect and explain. \nA. Amphetamine, B. Doxylamine, C. Dimethadione, D. Meprobamate', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Meprobamate', 'role': 'assistant'}]