This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'Fluid containing which of the following substance is used in peritoneal dialysis? \nSelect and explain. \nA. NaCl, B. Urea, C. Heparin, D. Dextrose', 'role': 'user'}, {'content': 'Answer: D \nExplanation: .', 'role': 'assistant'}]