This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
[{'content': 'Which of the following catheter materials is most suited for long-term use is \nSelect and explain. \nA. Latex, B. Silicone, C. Rubber, D. Polyurethane', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .Silicone is most suited for long-term use because it is ine and unreactive to body fluids and a range of medical fluids with which it might come into contact.', 'role': 'assistant'}]