How far must you stop from a stop sign or traffic light?

Stopping at the marked stop line or before entering the intersection if there is no line is crucial for ensuring safety and compliance with traffic regulations. This ensures that vehicles do not encroach into pedestrian walkways or block the intersection, which can create dangerous situations for both pedestrians and other drivers.

When you stop at the marked stop line, you're adhering to the law, which promotes a smooth flow of traffic and allows for visibility of oncoming vehicles and pedestrians. If there isn't a stop line, stopping before entering the intersection gives you the opportunity to check for any cross traffic and pedestrians. This practice is fundamental for defensive driving and maintaining awareness of your surroundings, ultimately contributing to safer road conditions.

While the other choices mention distances that could be considered in some contexts, they do not reflect the most relevant and safe stopping practice in relation to traffic signs and lights.