On a roundabout, you must yield to traffic:

• A. Vehicles approaching from the left
• B. Pedestrians crossing the road
• C. Already in the traffic circle
• D. Vehicles in the next exit lane

Answer: (C)

The main rule being tested is who has the right-of-way when you enter a roundabout. Vehicles already circulating in the circle have priority, so you must yield to them and wait for a safe gap before entering. This keeps traffic flowing smoothly and prevents collisions as you merge into the circulating flow and then exit at your chosen point. Pedestrians crossing at the entrances/exits should be watched and allowed to cross, but the core priority in this scenario is the traffic already in the circle. Vehicles simply approaching from the left or those in the next exit lane do not override the vehicles currently inside the roundabout, which is why the best answer is the ones already in the traffic circle.