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
This inhibitor of bacterial protein synthesis has a narrow spectrum of antibacterial activity. It has been used in the management of abdominal abscess caused by Bacteroides fragilis, but antibiotic-associated colitis has occurred. Which of the following drugs is being described? 
Select and explain. 
A. Clarithromycin, B. Clindamycin, C. Minocycline, D. Ticarcillin
B: Clindamycin
Answer: B: Clindamycin 
Explanation: None