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: Gynaecology & Obstetrics
[{'content': 'Breast fed baby is protected from some GI infection due to presence of what in mothers milk: March 2013 \nSelect and explain. \nA. IgA, B. Vitamin D, C. Long chain omega-3 fatty acids, D. IgE', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A i.e. IgA', 'role': 'assistant'}]