Which of the following statements about lymphocytes is FALSE?

A) Once they are mature, they migrate to secondary lymphoid organs.
B) B and T lymphocytes can be differentiated using a bright-field light microscope.
C) Lymphocytes have integral surface proteins by which they can be recognized.
D) The glycoproteins on the surface of a lymphocyte are designated with the prefix CD, for "cluster of differentiation."
E) Lymphocytes have different types of CD molecules in their cytoplasmic membranes.