IgE Is an Important Immunoglobulin Because It

Multiple Choice

IgE is an important immunoglobulin because it:

A) mediates some types of hypersensitivity (allergic) reactions.
B) is generally responsible for an individual's immunity to invading parasites.
C) binds strongly to a receptor on mast cells and basophils and,with antigen,mediates the release of histamines and heparin from these cells.
D) all of the above.