This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Hyperosmolarcoma are caused by the following excep t by \nSelect and explain. \nA. Hyperglycemia, B. Uremia, C. Increased concentration of plasma proteins, D. Increase in plasma sodium concentration', 'role': 'user'}, {'content': 'Answer: C \nExplanation: though the concentration of proteins is large they only contribute 2mosm/lbecause of their very high molecular weights', 'role': 'assistant'}]