At an uncontrolled intersection where two cars reach at approximately the same time, right of way should be given to:

At an uncontrolled intersection, the principle governing right-of-way is critical for preventing collisions and ensuring smooth traffic flow. When two vehicles arrive at an intersection simultaneously, the vehicle approaching from the right has the right of way. This rule is part of basic traffic regulations to help drivers make safe decisions when faced with potential conflicts.

The reason behind this rule is to establish a clear guideline for drivers, minimizing confusion during interactions at intersections without traffic signals or signage. By assigning priority to the vehicle on the right, it creates a predictable pattern that all drivers can rely upon, reducing the chances of accidents.

In this scenario, while the other choices present different ideas for determining priority, they do not align with the established traffic rules. Recognizing the vehicle on the right as having priority is essential for safe navigation through such intersections.