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: Skin
[{'content': 'Circulating lymphocytes are most sensitive to : \nSelect and explain. \nA. UV-A, B. UV-B, C. UV-C, D. 760-800 mm', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C. i.e. UV-C', 'role': 'assistant'}]