What is the difference between antibody immunity and cellular immunity?
a) antibody immunity uses B cells; cellular immunity uses different types of both B and T cells
b) antibody immunity uses both B and T cells; cellular immunity doesn't use any type of cell
c) antibody immunity doesn't use any cells; cellular immunity uses different types of T cells
d) antibody immunity uses B and T-helper cells; cellular immunity uses different types of T cells
e) antibody immunity uses T cells; cellular immunity uses different types of B cells