Which of the Following Statements About the Outer Layer of the Eye

Which of the following statements about the outer layer of the eye is true?

A) The outer layer of the eye is very sensitive to touch.
B) The outer layer of the eye is darkly pigmented to prevent light from reflecting internally.
C) The trigeminal (CN V) and the trochlear (CN IV) nerves are stimulated when the outer surface of the eye is stimulated.
D) The visual receptive layer of the eye in which light waves are changed into nerve impulses is located in the outer layer of the eye.