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: Biochemistry
The normal range of serum osmolality (in mosm/L) is: 
Select and explain. 
A. 280 to 295, B. 300 to 320, C. 350 to 375, D. 200 to 250
A: 280 to 295
Answer: A: 280 to 295 
Explanation: None