The mantle i think sorry if i am wrong
The answer is B and I need 20 characters so I am typing random words
Answer AND Explanation:
As light reflected from an external object enters the eye, it is refracted by the cornea, aqueous humour, the lens and vitreous humour so that an image is focused on the retina. The image is real, upside down and smaller than the object. The photoreceptor cells are stimulated by the reflected light and impulses are set off. The impulses are transmitted by neurons through the optic nerve to the optic region of the brain. The brain interprets the impulse as an upright impression of the object.
Answer:
No to feel nervous is too feel the sense of feeling scared and has nothing to do with the nerves in your body