In terms of safety belt requirements, what type of seat is mandatory for children?

The correct response highlights the requirement for children to be secured in child seats, which is crucial for their safety while traveling in a vehicle. Child seats are designed to provide the appropriate level of protection for younger passengers, as they help to properly position the child within the vehicle and reduce the risk of injury in the event of an accident. These seats are specifically engineered to accommodate the unique anatomical features of children, ensuring that seatbelts fit properly as they grow older.

Mandatory use of child seats is rooted in safety regulations that aim to reduce the number of injuries and fatalities among children in car crashes. While booster seats and standard seat belts play roles in the progression to safe vehicle usage for older children, the foundational requirement for young children is to be secured in a designated child seat for optimal protection.