In what order must the vehicles proceed at the intersection?

At an intersection, the right-of-way rules dictate how vehicles should proceed based on their positions and the traffic flow. In this particular situation, the second vehicle must go first, indicating that it either has the clear right of way or is approaching from a direction that takes precedence over the others.

The first vehicle, which is noted to go second, likely has a controlled timing or signal that allows it to proceed safely following the first vehicle's movement. Finally, the third vehicle must wait until both the first and second vehicles have cleared the intersection, emphasizing the importance of the right-of-way protocol.

This sequence illustrates the importance of understanding intersection rules and prioritizing vehicle movement based on their positions and traffic regulations, thereby enhancing safety for all road users.