What does a green light mean at an intersection?

Answer: B — You may proceed through the intersection if the way is clear

A green light at an intersection indicates that you may proceed through the intersection if the way is clear. This means that drivers have the right of way to move forward, provided they can do so safely without encountering any obstacles or potential hazards, such as pedestrians or other vehicles disregarding traffic laws. Understanding this signal is crucial for safe driving and managing traffic flow effectively. While drivers are allowed to move forward, they must remain vigilant and ensure that the intersection is clear of pedestrians and other vehicles before proceeding, as other factors could influence the safety of their movement. The other options represent situations that do not apply when a green light is displayed. For instance, stopping before proceeding is required at a red light, yielding to pedestrians must always be maintained regardless of the light color, and preparing to stop is typically associated with yellow lights or when there are other dangers approaching.