Question

a leading cause of death in children younger than 14 years could be prevented by: a. better parental supervision b. prevention of child abuse c. wearing helmets while riding motorcycles d. safer driving of vehicles

Explanation:

Motor vehicle crashes are a leading cause of death in children younger than 14. Wearing helmets while riding motorcycles (and other safety measures like seat - belts in cars) can prevent many of these deaths. Parental supervision (a) is important but not as directly related to a leading cause of death. Child abuse (b) is a serious issue but not a leading cause of death in this age group compared to accidents. Safer driving of vehicles (d) is part of the solution, but the specific act of wearing helmets for motorcycle - related travel (which is a common activity for some children, e.g., as passengers) is more directly relevant.

Answer:

C. Wearing helmets while riding motorcycles