This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid & Electrolyte, Subject name: Pediatrics
Molar ratio of sodium & glucose in WHO reduced osmolarity ORS is: 
Select and explain. 
A. 1:01, B. 1:02, C. 1:04, D. 2:01
A: 1:01
Answer: A: 1:01 
Explanation: Ans. A. 1:1Composition of WHO recommended ORS.Constituentg/lmmol/ion Sodium chloride2.6Sodium75Glucose, anhydrous13.5Chloride65Potassium chloride1.5Potassium20Trisodium citrate dihydrate2.9Citrate10Total Osmolarity245mosmol/L