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
The antibiotic of choice in patients sensitive to penicillin is 
Select and explain. 
A. Erythromycin, B. Streptomycin, C. Tetracycline, D. Chloramphenicol
A: Erythromycin
Answer: A: Erythromycin 
Explanation: None