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
DOC for chemoprophylaxis of plague ? 
Select and explain. 
A. Streptomycin, B. Erythromycin, C. Tetracycline, D. Vancomycin
C: Tetracycline
Answer: C: Tetracycline 
Explanation: Ans. is 'c' i.e., Tetracycline