This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Alopecia, Subject name: Skin
[{'content': 'Exclamation mark hairs are seen in: \nSelect and explain. \nA. Syphilis, B. Alopecia areata, C. Psoriasis, D. Dermatophytosis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans is 'b' i.e, Alopecia areata", 'role': 'assistant'}]