What should a driver do when approaching a roundabout?

Answer: B — Yield to traffic already in the roundabout

When approaching a roundabout, the driver should yield to traffic that is already circulating within the roundabout. This is important for ensuring a smooth flow of vehicles and for maintaining safety on the road. By yielding, the driver allows those already in the roundabout to continue moving without interruption, which helps prevent collisions and keeps traffic moving efficiently. In addition, yielding reflects the principle of right-of-way that is crucial at roundabouts. It is designed to reduce the likelihood of accidents by creating a predictable environment where vehicles know they must give way to those already on the roundabout. In contrast, speeding up to enter quickly can lead to unsafe situations and disrupt the flow of traffic. Making a U-turn is typically not permissible at roundabouts, as they are primarily used for navigating intersections rather than changing direction. Continuing straight without yielding poses a significant risk of collision with vehicles already in the roundabout, as it ignores the rules regarding right-of-way.