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
Amount of ORS given in 5kg child with diarrhoea with some dehydration 
Select and explain. 
A. 300ml over 2 hours, B. 350ml over 1 hour, C. 375ml over 4 hours, D. 400ml over 6 hours
C: 375ml over 4 hours
Answer: C: 375ml over 4 hours 
Explanation: For some dehydration, amount of ORS given is 75ml/kg over 4 hours, hence 75×5 = 375 ml over 4 hours.