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
[{'content': 'Immunoglobulin present in local secretions is ? \nSelect and explain. \nA. IgG, B. IgA, C. IgM, D. IgD', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 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.!', 'role': 'assistant'}]