When driving on a mountain road, to save fuel, you can coast in neutral going downhill and use the brakes to control speed.

ANSWER · B

On a downhill, coasting in neutral causes speed to increase due to inertia, with the vehicle losing engine traction. The vehicle can only rely on brakes to control speed, which heats the brake pads, reducing braking effectiveness and posing a major safety hazard. Coasting in neutral on a downhill is not allowed.

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