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
Red man syndrome is caused by which drug: 
Select and explain. 
A. Linezolid, B. Clindamycin, C. Vancomycin, D. Teicoplanin
C: Vancomycin
Answer: C: Vancomycin 
Explanation: Vancomycin is a glycopeptide antibiotic that releases histamine leading to "Red man syndrome"