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: Microbiology
IgE binds to which cell ? 
Select and explain. 
A. T cells, B. B cells, C. Mast cells, D. NK cells
C: Mast cells
Answer: C: Mast cells 
Explanation: IgE binds to Mast cells and basophils, and mediate Type I hypersensitivity.