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
[{'content': 'Which antitubercular drug inhibits mycolic acid synthesis ? \nSelect and explain. \nA. INH, B. Streptomycin, C. Rifampicin, D. Ethambutol', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is'a'i.e., INHINH + Inhibits synthesis of mycolic acid which is a component of mycobacterial cell wall.Pyrazinamide -+ Inhibits synthesis of mycolic acid.", 'role': 'assistant'}]