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
Chemoprophylaxis given in cholera 
Select and explain. 
A. Doxycyclin, B. Azithromycin, C. Erythromycin, D. Tetracyclin
D: Tetracyclin
Answer: D: Tetracyclin 
Explanation: None