This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
B cells are induced to produce IgE by which of the following 
Select and explain. 
A. IL-2, B. IL-4, C. IL-1, D. IL-6
B: IL-4
Answer: B: IL-4 
Explanation: ref : robbins 10th ed