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
Tetracycline is used in the prophylaxis of 
Select and explain. 
A. Brucellosis, B. Cholera, C. Leptospirosis, D. Meningitis
B: Cholera
Answer: B: Cholera 
Explanation: None