What should drivers do when using a roundabout?

Answer: B — Yield to the traffic already in the roundabout

When using a roundabout, drivers should yield to the traffic already in the roundabout. This is important because roundabouts are designed to improve traffic flow and safety by allowing continuous movement and reducing the likelihood of high-speed collisions. By yielding to vehicles that are already circulating, drivers can enter the roundabout safely and ensure a seamless transition. Yielding to oncoming traffic helps to maintain the flow of vehicles already within the roundabout, minimizing delays and potential accidents. This practice also allows drivers to assess any gaps in traffic so they can merge when it is safe to do so. In general, the rules for roundabouts emphasize a circular flow of traffic, and the priority is given to those who are already in the roundabout, thereby promoting safer driving conditions.