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: Social & Preventive Medicine
[{'content': 'The drug of choice for treating cholera in pregnant women is - \nSelect and explain. \nA. Tetracycline, B. Doxycycline, C. Furazolidone, D. Cotrimoxazole', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]