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: Microbiology
Fastest microbiocidal agent against M.leprae - 
Select and explain. 
A. Clofazimine, B. Dapsone, C. Rifampicin, D. Minocycline
C: Rifampicin
Answer: C: Rifampicin 
Explanation: None