This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Social & Preventive Medicine
ORS WHO glucose in mmol/L 
Select and explain. 
A. 75, B. 120, C. 9, D. 111
A: 75
Answer: A: 75 
Explanation: (A) 75 CONCENTRATIONS OF INGREDIENTS IN REDUCED OSMOLARITY ORSIngredientg/LMolecule/ionmmol/L* Sodium chloride (NaCI)2.6Sodium75* Glucose, anhydrous (C6H12O6)13.5Glucose75* Potassium chloride (KCI)1.5Potassium20* Chloride65 * Trisodium citrate, dehydrate Na3C6H5O7-2H2O2.9Citrate10