Answer:
Option C
Step-by-step explanation:
Epithelial tissues is the tissue which act as a medium in all kind of passages in out of body or any body organ.
Epithelial tissues is found on the body surface of all organisms. It also lines the inner surfaces of all cavities of all internal organs with in a body. It also outlines the surface of blood vessel.
Since all kind of transfers within and out of a body or organ takes through its surface, it can be said that it is the Epithelial tissues which receives or give off substances.
Hence, option c is correct