This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Pediatrics
[{'content': 'The average whey/casein ratio in breast milk is: \nSelect and explain. \nA. 60:40:00, B. 80:20:00, C. 0.888888889, D. 40:60', 'role': 'user'}, {'content': "Answer: A \nExplanation: a. 60:40(Ref: Nelson's 20/e p 286-290, Ghai 8/e p 150-161)Human milk contains two types of proteins 60% is: whey and 40% is casein; helps in quick & easy digestion.", 'role': 'assistant'}]