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: Anatomy
[{'content': 'Which of the following drug needs no dose modification in TB with CRF? \nSelect and explain. \nA. Ethambutol, B. Rifampicin, C. INH, D. Pyrazinamide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In CRF we can give full dose of rifampicin because this drug is completely metabolize in liver', 'role': 'assistant'}]