This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'Which of the following is bactericidal drug used for leprosy? \nSelect and explain. \nA. Ciprofloxacin, B. Ofloxacin, C. Erythromycin, D. Gentamicin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Fluoroquinolones are cidal, ofloxacin is a pa of ROM(rifampici+ofloxacin+minocycline) regimen used in leprosyRef: H L Sharma and KK Sharma 3rd ed pg: 779', 'role': 'assistant'}]