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': 'In a breastfed infant, there is less chance of enteric infection is due to ____________ \nSelect and explain. \nA. Alkaline pH, B. Breast milk nutrients and immunological superiority, C. Ig in breast milk, D. Bacteroides and Clostridium in gut', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Lactoferrin present in breastmilk is less than 50% saturated with iron, which makes it unsuitable for the growth of enterobacteria. Breast milk especially colostrum has living phagocytic macrophages & lymphoid cells, which provide non-specific gastrointestinal host defenses and offer protection against diarrhea. Ref: Page 97; Ghai essential pediatrics; 6th edition', 'role': 'assistant'}]