Final answer:
The sign being described in the question is a stop sign. It is important to come to a full stop at the marked stop line or before entering the crosswalk or before your vehicle enters the intersection. Let other vehicles or pedestrians pass if they are in your path.
Step-by-step explanation:
The sign being described in the question is a stop sign. When you come to an intersection controlled by a stop sign, it is important to come to a full stop at the marked stop line, or before entering the crosswalk or before your vehicle enters the intersection. You should also let other vehicles or pedestrians pass if they are in your path. Adhering to these guidelines promotes safety and helps maintain traffic flow.