What is the 'two-second rule'?

Answer: B — guideline to maintain a safe following distance

The 'two-second rule' is a guideline used to help drivers maintain a safe following distance from the vehicle in front. By observing the two-second rule, a driver ensures that they have enough space to react to sudden stops or changes in traffic conditions. To apply this rule, a driver should choose a fixed point on the road (like a sign or a tree) and start counting seconds when the rear of the vehicle in front passes that point. If the driver reaches the fixed point in less than two seconds, they are too close and should increase the distance between themselves and the vehicle ahead. This practice helps in minimizing the risk of collisions, especially in wet or slippery conditions where stopping distances can be longer. This guideline is particularly useful in various driving situations, such as during heavy traffic or adverse weather conditions, where maintaining a safe distance becomes crucial.