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': 'Which of the following third generation cephalosporin has activity against MRSA (Methicillin Resistant Staphylococcus Aureus)? \nSelect and explain. \nA. Ceftriaxone, B. Ceftobiprole, C. Aztreonam, D. Cephalexin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b. Ceftobiprole', 'role': 'assistant'}]