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
[{'content': 'Antibiotic with Time-dependent killing and post antibiotic effect? \nSelect and explain. \nA. Fluoroquinolones, B. Beta lactam antibiotics, C. Erythromycin, D. Clindamycin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. d. Clindamycin', 'role': 'assistant'}]