What should you do if you encounter a roundabout?

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

When you encounter a roundabout, the appropriate action is to yield to the traffic that is already circulating within it. This is crucial for maintaining smooth traffic flow and ensuring safety for all drivers. Yielding allows you to assess the movement and speed of vehicles currently in the roundabout and find an appropriate gap to enter safely, which helps prevent accidents. Entering a roundabout without yielding disrupts this flow and could lead to collisions, as you may force your way into busy traffic. Always turning right is not necessary since roundabouts can allow for a variety of movements depending on your desired exit, and driving in reverse is prohibited and dangerous in such scenarios. Properly yielding and waiting for a safe moment to enter is essential for effective navigation of roundabouts.