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: Biochemistry
[{'content': '17-a hydroxylase is not involved in the pathway for synthesis of ? \nSelect and explain. \nA. Coisol, B. Aldosterone, C. Androsteredione, D. Testosterone', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Aldosterone", 'role': 'assistant'}]