Which of the following epithelial types is correctly matched with its major function?

Simple squamous epithelium is primarily designed for diffusion and filtration, rather than secretion or absorption. Its thin, flat cell structure allows for efficient gas exchange in areas like the lungs and lining of blood vessels, but it does not specialize in secretion or absorption functions.

Stratified squamous epithelium is characterized by its multiple layers of cells, which primarily provide protection against abrasion and wear, especially in areas like the skin and the lining of the mouth. This epithelium does not change shape when stretched; that function is typically associated with transitional epithelium found in the urinary bladder.

Stratified squamous epithelium serves a protective role and is not involved in diffusion. Its multiple layers are effective at protecting underlying tissues from mechanical stress and pathogens, but the diffusion of substances occurs through simpler epithelial types, such as simple squamous epithelium.