At an uncontrolled intersection, which vehicle has the right-of-way?

Answer: D — The vehicle approaching from the right.

At an uncontrolled intersection, the general rule of right-of-way is that the vehicle approaching from the right has priority over other vehicles. This rule is based on the understanding that it helps to maintain a smooth flow of traffic and minimizes confusion in situations where there are no traffic signals or signs. When two vehicles arrive at an intersection simultaneously, the vehicle on the right has the legal right to proceed first. This principle is crucial for safety, as it establishes predictable behavior among drivers, reducing the likelihood of collisions. It is important for all drivers to be aware of this rule to navigate intersections safely and effectively. Other options provided do not follow the standard right-of-way rules recognized in traffic laws, which is why they are not correct. The slowest vehicle does not automatically have priority, nor does the fastest vehicle, as speed does not determine the right to proceed. Additionally, the vehicle approaching from the left is at a disadvantage compared to the vehicle on the right at an uncontrolled intersection.