Which safety systems can lose effectiveness if the seat belt is not worn?
A)The brakes and ABS.
B)The suspension and shock absorbers.
C)The airbags and headrests.Correct
The seat belt is the main restraint system that keeps the body in the correct position. Both the airbag and the headrest are designed to work in coordination with the belt. Without its restraint, the body would impact them incorrectly, nullifying their protective effectiveness and possibly causing serious injuries.