Which vehicle system should be in good operating condition for safe driving?

For safe driving, it is essential that all listed systems be in good operating condition. Each system plays a critical role in the overall safety and functionality of the vehicle.

Tires are crucial for maintaining traction and stability while driving. Properly inflated and well-maintained tires can enhance handling, improve fuel efficiency, and reduce the risk of blowouts.

Lights are vital for visibility and communication with other road users. Working headlights, brake lights, turn signals, and hazard lights ensure that you can see and be seen, especially in low-light conditions or during inclement weather.

Brakes are one of the most critical safety features of any vehicle; they must be fully functional to allow the driver to stop safely in all situations. Worn or malfunctioning brakes can lead to accidents due to the inability to stop quickly or effectively when necessary.

Given the integral function of each of these systems to vehicle safety, maintaining them in good operating condition is non-negotiable for responsible driving. Thus, the correct answer indicates the necessity of ensuring that all these systems are operating effectively for safe driving.