While driving, how can you safely check whether the road is icy?

You answered correctly. To safely check if the road is icy while driving, you should carefully apply the brakes at a very low speed. This method allows you to feel if the wheels lock or if the vehicle responds unusually, indicating a slippery surface. Jerking the steering wheel or rapid acceleration can be dangerous on potentially icy roads because they may lead to loss of control. Always proceed cautiously and test the road conditions gently to maintain safety.