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
A patient who underwent abdominal surgery, developed infection at wound site. Awound swab was sent for culture, which revealed MRSA. All of following antibiotics can be used for his treatment except - 
Select and explain. 
A. Cefclor, B. Cotrimoxzate, C. Ciprofloxacin, D. Vancomycin
A: Cefclor
Answer: A: Cefclor 
Explanation: Ans. is 'a' i.e., Cefclor o Ciprofloxacin, Cotrimoxazole and vancomycin are used for MRSA infections.