Which statements describe the functions of the basement membrane? Select all that apply.

a) The basal lamina is a specialized type of extracellular material only secreted by connective tissue cells.
b) Blood vessels in connective tissue do not penetrate the basement membrane, requiring nutrients to diffuse to the epithelium tissue.
c) Hemidesmosomes connect the reticular lamina to the connective tissue.
d) Epithelial cells produce the laminin which attach to the integrins in hemidesmosomes.
e) Basement membrane helps support and guide cells in migration during tissue repair.

A.abde
B.bde
C.ab
D.cde
E.bcde