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
Circulating lymphocytes are most sensitive to : 
Select and explain. 
A. UV-A, B. UV-B, C. UV-C, D. 760-800 mm
C: UV-C
Answer: C: UV-C 
Explanation: C. i.e. UV-C