How should you approach and navigate a roundabout?

Answer: B — Yield to traffic in the roundabout and enter when safe

When approaching and navigating a roundabout, the correct strategy is to yield to the traffic that is already in the roundabout and enter only when it is safe to do so. This method promotes a smoother flow of traffic and reduces the risk of collisions. Yielding means you should watch for vehicles and cyclists already circulating in the roundabout and only enter when there is a clear gap. This approach maintains order and safety within roundabouts, which are designed to keep traffic moving efficiently. The other options suggest behaviors that could lead to accidents or traffic congestion. Speeding up to merge quickly could result in dangerous situations, as it disregards the presence of other vehicles that may already be traveling through the roundabout. Ignoring road signs contradicts traffic regulations and could lead to chaos within the roundabout. Signaling left until you exit may create confusion for other drivers, as it could suggest an intention to continue around the roundabout rather than indicating an exit. Proper signaling while navigating a roundabout involves using the right turn signal when you are preparing to exit, clarifying your intentions to other road users.