What is the legal way to carry a child under 8 years of age in a vehicle?

Carrying a child under 8 years of age in a vehicle requires the use of an appropriate child safety seat, which is specifically designed to protect young passengers. Child safety seats help secure the child safely, distributing the forces of a crash over the strongest parts of their body. These seats are designed according to a child's height and weight, ensuring optimal protection during an accident.

The other methods mentioned do not provide adequate safety for a child. For instance, having a child in the front seat could expose them to greater risk, as front airbags can be dangerous for smaller bodies. Riding in the back seat without any seatbelt does not offer any protection, and using a booster seat without buckling does not ensure the child's safety at all. Therefore, using an appropriate child safety seat is the legally mandated and safest method to transport a child under 8 years of age in a vehicle.