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': 'OCP should not be used with \nSelect and explain. \nA. Rifampicin, B. 1NH, C. Streptomycin, D. Pyrazinamide', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Rifatnpicin See Nov 09 Obs & Gynae', 'role': 'assistant'}]