What is the consequence of not adhering to the two-second rule?

Not adhering to the two-second rule can lead to a potentially unsafe following distance, which is the main reason for this guideline in driving safety. The two-second rule helps drivers maintain a safe amount of space between their vehicle and the one in front, allowing enough time to react if the lead vehicle suddenly stops or slows down. When drivers do not follow this rule, they may find themselves too close to the vehicle ahead, increasing the risk of a rear-end collision. A safe following distance enables the driver to react appropriately to sudden changes in traffic conditions and provides sufficient time to brake without the risk of an accident.

The other options do not address the fundamental purpose of the two-second rule, which is primarily focused on safety and maintaining an appropriate distance to prevent accidents.