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': 'Mechanism of action Trilostane ? \nSelect and explain. \nA. 11 beta hydroxylase inhibitor, B. 1 alpha hydroxylase inhibitor, C. 3 betahydroxysteroiddehydrgenase inhibitor, D. 7 alpha hydrolase inhibitor', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 3 beta hydroxyl steroid dehydrogenase inhibitor", 'role': 'assistant'}]