What must the driver of vehicle 2 do at an intersection?

Answer: A — Wait for vehicle 1 to move ahead first

The correct action for the driver of vehicle 2 at an intersection involves yielding to vehicle 1. This reflects the rule of right-of-way, which dictates that when two vehicles approach an intersection simultaneously, the vehicle on the main road has priority. In this scenario, vehicle 1 is likely in a position to continue moving, while vehicle 2 must wait for vehicle 1 to pass before proceeding. Yielding promotes safety by preventing accidents that can occur when drivers do not respect each other's rights to the road. Understanding right-of-way rules is crucial, especially in busy or complex intersections, as it minimizes confusion and establishes a clear flow of traffic. Following this rule helps ensure smooth navigation through intersections, ensuring that all drivers can operate their vehicles safely and confidently. Other options such as proceeding immediately or stopping at the intersection can lead to dangerous situations. For instance, proceeding without waiting puts both vehicles and possibly pedestrians in jeopardy. Stopping regardless of conditions could be inappropriate if it creates confusion or blockages. Signaling other vehicles to pass doesn't align with standard driving protocols and can mislead other drivers regarding your intentions. Thus, yielding to vehicle 1 is the correct and safest decision in this scenario.