Final answer:
To go straight through a roundabout with multiple lanes, choose the right-hand lane and exit in the same lane, respecting local traffic rules and the design of the roundabout for safe and smooth traffic flow.
Step-by-step explanation:
When entering a roundabout with multiple lanes and you intend to go straight through the intersection, you should typically choose the right-hand lane and ensure to exit in the right-hand lane as well. This is because roundabouts are designed for vehicles in the right-hand lane to easily continue straight or take the first exit, while the left-hand lane is usually meant for drivers who are turning left or completing a full turn around the roundabout. It's important to follow local traffic rules as they can vary by location.