What is the law regarding child safety seats in Massachusetts?

Answer: A — Children under 8 years must use a booster seat

In Massachusetts, the law mandates that children under 8 years old must be secured in a child safety seat, which includes using a booster seat when appropriate for their size and weight. The key aspect of this regulation is ensuring that younger children are safely positioned in a manner that optimally protects them in the event of a crash. The requirement emphasizes the importance of booster seats, as they help raise the child to a height that allows the vehicle’s seat belt to fit properly across their chest and lap. This makes option A the correct answer, as it accurately reflects the legal requirement for child safety seats in Massachusetts. The other options do not align with the established law regarding age and height requirements for using booster seats, and therefore they do not meet the criteria set forth for child passenger safety in the state.