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: Gynaecology & Obstetrics
[{'content': 'Which of the following antitubercular drugs is contraindicated in pregnancy? \nSelect and explain. \nA. Isoniazid, B. Rifampicin, C. Ethambutol, D. Streptomycin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Streptomycin', 'role': 'assistant'}]