Which of the following statements is not true about using protective equipment?
a. there is no correct way to use protective equipment.
b. helmets are designed differently for various sports.
c. mouth guards protect teeth from impacts.
d. following the rules of an activity is equally important.

Among the four choices provided in this item. The untrue about the use of protective equipment is letter A. There is no correct way to use protective equipment. This statement should be rephrased to, "There are several ways to use the protective equipment" so long as each of these ways are capable of protecting the personnel.