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
Breast fed baby is protected from some GI infection due to presence of what in mothers milk: March 2013 
Select and explain. 
A. IgA, B. Vitamin D, C. Long chain omega-3 fatty acids, D. IgE
A: IgA
Answer: A: IgA 
Explanation: Ans. A i.e. IgA