Final answer:
When rain, snow, and ice impair your ability to see ahead, you must increase your following distance to stop your vehicle safely.
Step-by-step explanation:
When rain, snow, and ice impair your ability to see ahead, the correct action to take in order to stop your vehicle safely is to increase your following distance. When rain, snow, and ice impair your ability to see ahead, you must increase your following distance to stop your vehicle safely.
By increasing the distance between your vehicle and the vehicle in front of you, you allow yourself more time to react and stop safely in case of any sudden movements or emergency situations.
Increasing the brightness of your headlights or changing lanes frequently may not be effective solutions and could actually be dangerous in poor visibility conditions.