What is the right-of-way rule at a four-way stop?

At a four-way stop, the fundamental rule is that the vehicle that arrives first has the right of way. This means that if you approach the stop sign and there are other vehicles already waiting, the one that got there before you should go first. In situations where two or more vehicles arrive simultaneously, the general practice is that the vehicle on the right has priority. However, arriving first is the primary rule that governs traffic at these intersections, promoting a safe and organized flow of traffic by ensuring that drivers can make their turns or proceed through the intersection without indecision or confusion.

The other options do not align with standard traffic laws or best practices at intersections. The size of the vehicle or the number of passengers does not influence the right-of-way rules at a stop sign. Thus, whether a vehicle is larger or carries more passengers has no bearing on who should go first at a four-way stop.