Final answer:
When driving on an icy road, it is important to reduce your speed and drive slower than the posted limit to ensure safety.
Step-by-step explanation:
When driving on an icy road where the posted speed limit is 50 mph, it is important to adjust your driving to the road conditions. The correct action to take is to reduce your speed and drive slower than the posted limit. Driving at the posted speed limit on an icy road can be dangerous and increase the risk of losing control of the vehicle. Slowing down allows for better control, increased stopping distance, and reduces the chances of skidding or sliding.