This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Durg of choice for chemoprophylaxis of plague - \nSelect and explain. \nA. Erythromycin, B. Cotrimoxazole, C. Tetracycline, D. Sulfadiazine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Drug of choice for chemoprophylaxis of plague is tetracycline. For adults, the dose is 500 mg 6 hourly for 5 days A cheaper alternative is sulfonamide, 2 to 3 gm daily for 5 to 7 days. Ref: PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 23rd edition pg: 296', 'role': 'assistant'}]