What might be the consequence of excessive brake use?

1. Overcooling of the brakes and increase of braking efficiency.
2. Correct answer: Overheating of the brakes and decrease of braking efficiency.
3. Excessive use of the brakes should cause no concern.
4. The power of the engine might be decreased and it might even stop working.

WhyIf you brake too much, the brakes overheat and become less effective.