What are the two most critical parts of a car to maintain for occupant safety?

The most critical parts of a car to maintain for occupant safety are the tires and brakes. Tires are crucial because they are the vehicle's only contact point with the road; if they are underinflated, worn out, or damaged, they can lead to loss of traction, difficult handling, and increased stopping distances. Proper tire maintenance, such as regular inspections for tread wear and maintaining the correct air pressure, is essential to ensure safety during drive maneuvers.

Brakes are equally important, as they are responsible for slowing down or stopping the vehicle. Regular checks of brake pads, rotors, and fluid levels can help prevent braking failures that may lead to accidents. Effective braking systems allow drivers to respond promptly to hazards, which is vital for the safety of all occupants in the vehicle.

While other options like lights and the horn or windshield wipers and mirrors also contribute to driving safety, they do not directly affect the vehicle's ability to stop or maintain proper control on the road. Therefore, prioritizing tire and brake maintenance is essential for ensuring the safety of everyone in the vehicle.