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
Which of following is hypeonic? 
Select and explain. 
A. 5%dextrose, B. 0.45% normal saline, C. 0.9%normal saline, D. 3% normal saline
D: 3% normal saline
Answer: D: 3% normal saline 
Explanation: 3% normal saline REF: Fluids & electrolytes by By Lippincott Williams & Wilkins page 264 Isotonic Hypeonic Hypotonic Dextrose 5% in water 5% dextrose in half normal saline 0.45% normal saline 0.9% normal saline (NaC1) 5% dextrose in normal saline Ringer lactate Dextrose 10% in water