The Five Classes of Antibodies (IgG, IgA, IgM, IgE, IgD)

The five classes of antibodies (IgG, IgA, IgM, IgE, IgD) that can be produced during an immune response are based on:

A) differences in C_L chain regions
B) differences in V_H chain regions
C) differences in C_H chain regions
D) differences in V_L chain regions
E) differences in all constant and variable chain regions