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: Pharmacology
Drug of choice for plague is : 
Select and explain. 
A. Erythromycin, B. Tetracyclines, C. Ampicillin, D. Cotrimoxazole
B: Tetracyclines
Answer: B: Tetracyclines 
Explanation: None