To enter a roundabout, you must what?

Answer: D — Turn right and merge into traffic

To enter a roundabout, you must turn right and merge into traffic. In a roundabout, vehicles move counterclockwise around a central island. When entering a roundabout, you should always go to the right of the central island and merge into the circulating traffic. This ensures a smooth flow of traffic and minimizes the risk of collisions. Remember that vehicles inside the roundabout have the right of way, so it is important to yield to oncoming traffic already in the roundabout before entering.