What does a full-face helmet protect?

What does a full-face helmet protect?
A)Only the back of the skull.
B)Only the top of the skull.
C)The face and the head.Correct
Most open-face helmets leave the face exposed to impacts, do not usually offer eye protection, and some models do not adequately protect the back of the head. The use of a full-face model is more advisable, as it also protects the lower part of the face and the jaw.