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 above nail changes are seen in: \nSelect and explain. \nA. Lichen planus, B. Alopecia areata, C. Psoriasis, D. Onycholysis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Salmon patch or\xa0translucent oil drop like\xa0discoloration beneath nail plate is calssically seen in Psoraisis.', 'role': 'assistant'}]