The Eye Differs from Other Parts of the Body with Reference

The eye differs from other parts of the body with reference to defense mechanisms in that ________.

A) innate defenses,such as inflammation and phagocyte influx,would impair vision and are therefore limited
B) they are not vulnerable to infection so they do not require natural defenses
C) the primary defense mechanism is the lymphocyte response to epitopes on the pathogen surface
D) the third line of defense is the most essential