The correct answer is: A.
An automatic stop signal is a type of traffic signal that is activated by a vehicle approaching the intersection. The signal will display a red light, indicating that the vehicle must stop before proceeding. The signal will also have a marker plate that indicates the type of signal and the direction of travel.
The marker plate for an automatic stop signal is a white triangle with a red border. The triangle is located in the center of the signal, and the red border is located around the outside of the triangle. The marker plate will also have the word “STOP” written on it.
The marker plate for an automatic stop signal is important because it helps drivers to identify the type of signal and the direction of travel. This information is important for drivers to know so that they can safely navigate the intersection.
The other options are incorrect because they do not represent the marker plate for an automatic stop signal. Option B is a red octagonal sign with the word “STOP” written on it. This is the marker plate for a stop sign. Option C is a green circle with a white arrow pointing left. This is the marker plate for a left-turn arrow. Option D is a blue sign with the word “YIELD” written on it. This is the marker plate for a yield sign.