Final answer:
The subject of this question is Driver's Education, specifically related to the rule of coming to a complete stop at a traffic signal and proceeding when all other road users have completely stopped.
Step-by-step explanation:
The subject of this question is Driver's Education. The question pertains to the rule of coming to a complete stop at a traffic signal and proceeding when all other road users have completely stopped. This is an important rule to ensure safety and avoid accidents at intersections.