One of the Descriptions Below Is from the Perspective of Anatomical

One of the descriptions below is from the perspective of anatomical study, the rest are from a physiological perspective. Select the description below that comes from an anatomical perspective.

A) The extremely thin tissue (simple squamous epithelium) of the lungs allows for the quick diffusion of respiratory gases into and out of the body.
B) The direction of blood flow through the heart is directed by one way valves.
C) The cell-to-cell connections between heart (cardiac) muscle cells are strong. They hold the tissue together for a life time of forceful contractions.
D) The innermost lining of the lungs is composed primarily of a thin tissue called simple squamous epithelium.