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: Skin
[{'content': 'Alopecia areata is treated by- \nSelect and explain. \nA. Minoxidil, B. Tranquilizers, C. Whitfields oinment, D. Parenternal penicillin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A. i.e. Minoxidil', 'role': 'assistant'}]