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': 'Interaction of theophylline with ciprofloxacin is : \nSelect and explain. \nA. Ciprofloxacin increases theophylline metabolism, B. Ciprofloxacin decreases theophylline metabolism, C. Theophylline increases ciprofloxacin metabolism, D. Theophylline decreases ciprofloxacin metabolism', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]