What do you do when you approach a roundabout?

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

When approaching a roundabout, the correct action is to yield to the traffic already in the roundabout. This ensures a smooth flow of traffic and helps prevent collisions. The design of roundabouts allows those inside to keep moving, while vehicles entering must wait for a gap in traffic before proceeding. Yielding allows motorists to assess the flow of vehicles within the roundabout and enter safely when there is an appropriate gap. Other choices presented do not align with safe driving practices at a roundabout. Speeding up to enter first can lead to dangerous situations, as it disregards the right-of-way of vehicles already circulating. Immediately leaving the roundabout could create confusion and disrupt the traffic flow, while stopping and waiting for directions is unnecessary in a roundabout, as the traffic rules and signs provide sufficient guidance.