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: Dental
[{'content': 'All of the following are causes of cicatrizing alopecia except – \nSelect and explain. \nA. Lichen planus, B. Discoid lupus erythematosus, C. Alopecia areata, D. Lupus vulgaris', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Alopecia areata causes non-cicatricial alopecia.', 'role': 'assistant'}]