Question

1. grabbing the front brake or jamming down on the rear brake: *

can cause the brakes to lock.
is the best way to stop in an emergency.
is the best way to slow down when the streets are wet.

Explanation:

When you grab the front brake too hard or jam down on the rear brake, it can cause the brakes to lock. Locked brakes mean the wheels stop rotating, which can lead to loss of control. In an emergency, the best way is usually to use both brakes properly (not just grabbing one hard). When streets are wet, sudden hard braking (grabbing front or jamming rear) is more likely to cause skidding as the wet surface reduces traction. So, grabbing the front brake or jamming down on the rear brake can cause the brakes to lock.

Answer:

Can cause the brakes to lock.