A stop sign requires you to:

The requirement to stop at a stop sign is clear and imperative for ensuring safety on the road. When you approach a stop sign, you are obligated to come to a complete stop before the stop line, crosswalk, or intersection, depending on the layout. This action allows you to thoroughly observe your surroundings, including any pedestrians who may be crossing the street or who are about to cross.

Stopping and checking for pedestrians helps prevent accidents and ensures that all road users—drivers, cyclists, and pedestrians—are aware of each other's presence. It's important to fully stop because without doing so, you may miss critical information about other vehicles or pedestrians that could pose a risk if you were to move through the intersection without taking the time to check.

The other choices suggest actions that do not fully comply with traffic laws surrounding stop signs, either allowing you to proceed without a complete stop or only stopping under certain conditions, which could lead to unsafe situations on the road. Following the requirement to stop and check for pedestrians promotes a safer driving environment for everyone.