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': 'The following condition is seen in: \nSelect and explain. \nA. Primary syphilis, B. Secondary syphilis, C. Lichen planus, D. Alopecia areata', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The figure depicts "moth eaten alopecia" seen in secondary syphilis', 'role': 'assistant'}]