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': 'Red man syndrome is caused by which drug: \nSelect and explain. \nA. Linezolid, B. Clindamycin, C. Vancomycin, D. Teicoplanin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Vancomycin is a glycopeptide antibiotic that releases histamine leading to "Red man syndrome"', 'role': 'assistant'}]