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
Compared with Cow&;s milk, mothers milk has more 
Select and explain. 
A. Lactose, B. Vit D, C. Proteins, D. Fats
A: Lactose
Answer: A: Lactose 
Explanation: Lactose is in a high concentration(6-7 g/dl) in breast milk. Lactose helps in absorption of calcium and enhances the growth of lactobacilli. Ref: Page 150, Ghai essential pediatrics; 8th edition