This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
Immunoglobulin present in local secretions is ? 
Select and explain. 
A. IgG, B. IgA, C. IgM, D. IgD
B: IgA
Answer: B: IgA 
Explanation: Robbins and Cotran pathologic basis of disease South Asia edition. *igA is secreted from mucosal epithelium and neutralises microbes in the lumen of respiratory and gastro intestinal tract.!