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: Pediatrics
True about composition of low osmolar ORS is 
Select and explain. 
A. Sodium 65mmol/L, Glucose 75mmol/L, B. Sodium 75mmol/L, Potassium 20mmol/L, C. Chloride 65 mmol/L, Potassium 10mmol/L, D. Sodium 65 mmol/L, Citrate 20mmol/L
B: Sodium 75mmol/L, Potassium 20mmol/L
Answer: B: Sodium 75mmol/L, Potassium 20mmol/L 
Explanation: None