This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastro Intestinal System, Subject name: Pediatrics
Molar ratio of Sodium and Glucose in WHO 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: a. 1:1(Ref: Approach to Practical Pediatrics 2nd ed by Narang Manish/pg 24)Molarity of sodium and glucose in ORS should be 1:1, which helps in the efficient transport of sodium and water.