Which of the following statements concerning epithelial tissue is false?

A) Secretory epithelial cells are usually cuboidal or columnar in shape.
B) The movement of materials through epithelium is enhanced by simple squamous epithelium.
C) Stratified epithelium is adapted for a protective role.
D) Columnar epithelial cells promote diffusion.
E) Cuboidal epithelium is found in areas where absorption occurs.