This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'Central clearing is a feature of \nSelect and explain. \nA. Lupus vulgaris, B. Tinea corporis, C. Leishmaniasis, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tinea corporis, more commonly known as "ringworm," lesions usually begin as pruritic, round (ovoid or circular), erythematous, scaling patches. These lesions spread centrifugally with central clearingand a raised scaling border Ref ganong\'s review of medical physiology 25e p735', 'role': 'assistant'}]