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: Anaesthesia
[{'content': 'Which among the following is type B breathing circuit \nSelect and explain. \nA. D, B. C, C. B, D. A', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Type b breathing circuit –both inlet and expiratory outlet valve are closer to patient.', 'role': 'assistant'}]