Which two vehicles must wait at the junction?

The correct answer indicates that Vehicles 2 and 3 must wait at the junction due to traffic rules or right-of-way regulations typically associated with intersections. These vehicles are likely in positions that require them to yield to other traffic, such as vehicles with a right-of-way, those already in the intersection, or vehicles approaching from a different direction that have a clear advantage.

In many driving scenarios, vehicles turning or merging into a main road often need to yield to oncoming traffic or adhere to traffic signals that dictate who has the right of way. By identifying the specific positions and directions of the vehicles involved, one can determine which ones are required to pause and allow others to proceed safely.

Understanding these rules is vital for promoting safety on the roads, preventing accidents, and ensuring an orderly flow of traffic. It also illustrates the importance of knowing local driving regulations and being aware of other vehicles' positions while navigating intersections.