If you begin to hydroplane, what should you do?

Answer: C — Slow down and avoid sudden maneuvers.

When a car starts to hydroplane, the tires lose grip because a layer of water sits between them and the road. With that grip gone, quick braking or sharp steering can send the car into a skid. The safest course is to ease off the accelerator to slow gradually and avoid sudden steering or braking. Smooth, gentle inputs help the tires reconnect with the road and regain traction. Once you feel the tires grip again, you can steer and brake normally.