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
A–3 month old female infant weight 4 kg and is suffering from loose motions. In examination she is found to be suffering from some dehydration.The amount of ORS to be given to her in the first four hour will be – 
Select and explain. 
A. 100 ml, B. 300 ml, C. 500 ml, D. 600 ml
B: 300 ml
Answer: B: 300 ml 
Explanation: Guidlines for treating patients with some dehydration (but not severe dehydration) treatment plan B

Basic is to give 75 ml/kg of ORS in the first 4 hours.