Final answer:
2) Increased. When the expressway is wet or slippery, your following distance should be increased.
Step-by-step explanation:
When the expressway is wet or slippery, your following distance should be increased.
When the road is wet or slippery, the tires have less traction, which means it takes longer for the car to come to a stop. Increasing your following distance gives you more time to react and stop safely if the car ahead stops suddenly. It also reduces the risk of skidding or sliding.