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
A 45 year old male has multiple grouped vesicular lesions present on the T10 segment dermatome associated with pain. The most likely diagnosis is 
Select and explain. 
A. Herpes zoster, B. Dermatitis herpetiformis, C. Herpes simplex, D. Scabies
A: Herpes zoster
Answer: A: Herpes zoster 
Explanation: A i.e. Herpes zoster