What action must you take when you see a stop sign?

When you encounter a stop sign, the appropriate action is to come to a complete stop and give way to all other traffic. The requirement to stop ensures that you have a chance to check for any vehicles, bicycles, or pedestrians that may be crossing or approaching the intersection from other directions. This action is critical for maintaining safety on the road, as it allows for careful observation of the surrounding traffic conditions.

Stopping at the sign is not just a legal requirement; it helps prevent accidents by ensuring that you yield the right of way to any vehicles or pedestrians who might be in or approaching the intersection. By adhering to this rule, drivers contribute to a systematic and safe flow of traffic, reducing the likelihood of collisions.

The other choices suggest less cautious approaches, which could lead to dangerous situations on the road. For example, merely slowing down might not provide adequate time to assess the intersection thoroughly, while ignoring the sign entirely compromises safety and legal compliance.