Assertion : Simple epithelium covers surfaces exposed to mechanical or chemical abrasions.
Reason : Protection of underlying tissues is the major function of simple epithelium.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion and reason are false
D. Both are false

Answer

D

Explanation

Simple epithelilum doesn't cover surfaces exposed to mechanical or chemical abraions, because it is made up of a single layer of cells, hence it is not effective in protecting the underlying tissue. Simple epithelium occurs mainly on secretory and absorptive surfaces. There is another types of epithelail tissue called compound epithelium which being multilayered is effective in providing protection to underlying tissues, hence covers the surfaces exposed to mechanical and chemical abrasions.