What consequence can result from frequent hard braking?

Frequent hard braking leads to worn brake pads because each time the brakes are applied with force, the friction between the brake pad and rotor creates heat and gradually wears down the material of the brake pads. Over time, this repetitive action causes the brake pads to thin out or become less effective, which can lead to decreased braking performance.

In heavy-use situations, such as in commercial driving or when navigating steep declines, relying on frequent hard braking can significantly decrease the lifespan of the braking system. This not only affects the vehicle's stopping ability but also increases the necessity for maintenance, which can lead to higher operational costs and safety concerns if the braking system is not kept in good condition.

The other options do not align with the effects of frequent hard braking. For instance, increased traction and better stopping power are typically achieved through proper brake use and vehicle control rather than hard braking, and improved vehicle stability is a result of smooth braking techniques rather than frequent abrupt stops.