This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
Which of the following is a broad spectrum antibiotic? 
Select and explain. 
A. Erythromycin, B. Streptomycin, C. Tetracycline, D. All
C: Tetracycline
Answer: C: Tetracycline 
Explanation: Spectrum of activity: Narrow-spectrum Penicillin G,Streptomycin,Erythromycin Broad-spectrum Tetracyclines,Chloramphenicol ESSENTIALS OF MEDICAL PHARMACOLOGY K.D.TRIPATHI SIXTH EDITION PAGE NO:669