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': 'Cayenne-pepper appearance on diascopy is seen in \nSelect and explain. \nA. Psoriasis, B. Discoid lupus erythematosus, C. Pemphigus, D. Systemic sclerosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Discoid lupus erythematosus a. Cyenne-pepper appearance of lesions on diascopy is seen in discoid lupus erythematosus. b. In discoid lupus erythematosus skin lesions usually, develop on the sun-exposed skin of the face and neck.', 'role': 'assistant'}]