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: Pharmacology
Drug of choice in dermatitis herpetiformis is : 
Select and explain. 
A. Corticosteroids, B. Colchicine, C. Dapsone, D. Chloroquine
C: Dapsone
Answer: C: Dapsone 
Explanation: None