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
Antibiotic with Time-dependent killing and post antibiotic effect? 
Select and explain. 
A. Fluoroquinolones, B. Beta lactam antibiotics, C. Erythromycin, D. Clindamycin
D: Clindamycin
Answer: D: Clindamycin 
Explanation: Ans. d. Clindamycin