Which of the following actions is recommended when approaching a roundabout?

When approaching a roundabout, yielding to traffic already in the roundabout is crucial for ensuring safe navigation. Roundabouts are designed to keep traffic moving by allowing vehicles already inside to proceed without stopping. This significantly reduces the likelihood of collisions and improves overall traffic flow. By yielding, you give priority to vehicles that are already circulating, which helps maintain a steady pace and prevents congestion, making travel safer and more efficient for everyone involved.

Options focusing on speeding up or using your horn are inappropriate in the context of a roundabout, as they could lead to dangerous situations. Keeping headlights on high beam is also not advisable; it can blind other drivers and create hazards, especially in daylight when high beams aren't necessary. Understanding the flow and yielding correctly helps new drivers build confidence and competence in managing roundabouts.