Question

which vehicle control does the driver use to ensure that a car does not roll down a steep hill when stopped? a windshield washer b light switch c cruise control d parking brake

Explanation:

The parking brake is used to hold a vehicle stationary, especially on inclines to prevent it from rolling. The windshield washer is for cleaning the windshield, the light - switch is for controlling lights, and cruise control is for maintaining a constant speed.

Answer:

D. parking brake