Final answer:
At a stop sign, you must come to a full stop, look for traffic and pedestrians, and proceed when safe. It's imperative for road safety and is mandated by law.
Step-by-step explanation:
When you see a stop sign, the correct action is to stop completely, Option A. This rule is designed to ensure the safety of drivers, pedestrians, and other road users. When approaching a stop sign, you should bring your vehicle to a complete halt at the marked stop line or before entering the crosswalk at the near side of the intersection. After stopping, you should look both ways to check for oncoming traffic and pedestrians before proceeding when it is safe to do so. Remember, rolling through a stop sign or only stopping when you see law enforcement is not only unsafe but also illegal.
Learn more about Stop Sign Procedure