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: Medicine
[{'content': 'Which one of the following therapies would be safe in a patient with pulmonary tuberculosis having markedly abnormal liver function - \nSelect and explain. \nA. Streptomycin + isoniazid, B. Ethambutol + isoniazid, C. Rifampicin + isoniazid, D. Streptomycin + ethambutol', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]