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: Social & Preventive Medicine
What is the total osmolarity of low osmolarity ORS? 
Select and explain. 
A. 311 mmol/ litre, B. 300 mmol/ litre, C. 245 mmol/ litre, D. 250 mmol/ litre
C: 245 mmol/ litre
Answer: C: 245 mmol/ litre 
Explanation: Composition of reduced osmolarity ORS: Components Amount in mmol/ litre Sodium 75 Chloride 65 Glucose, anhydrous 75 Potassium 20 Citrate 10 Total osmolarity 245 Ref: Park 21st edition, page 202.