Which of the following is a common sign of aggressive driving?

The correct answer is tailgating, which is a recognized sign of aggressive driving. Tailgating involves following another vehicle too closely, creating a dangerous situation that can lead to accidents. It demonstrates impatience and hostility, as the tailgater is often trying to pressure the driver in front to go faster or to change lanes. This behavior not only puts the aggressive driver at risk but also endangers other road users by reducing the time available to react to sudden changes in traffic conditions.

In contrast, driving under the speed limit does not indicate aggressive driving; rather, it may suggest a cautious or defensive approach. Similarly, frequent use of turn signals is a responsible driving practice that promotes safety by clearly communicating intentions to others on the road. Maintaining a safe distance from the vehicle ahead is also a hallmark of safe driving, allowing enough reaction time to avoid collisions. These behaviors reflect an awareness of road safety rather than aggression.