When a flashing yellow light is present at an intersection, you should:

Answer: B — Slow down and proceed carefully

A flashing yellow light indicates that drivers should proceed with caution, slowing down and checking for any oncoming traffic or pedestrians before proceeding through the intersection. Option A is incorrect because drivers should not come to a complete stop unless it is necessary. Option C is incorrect because drivers should not speed through an intersection or waive to pedestrians as this can be dangerous and lead to accidents. Option D is incorrect because drivers should only turn after ensuring that there are no oncoming vehicles or pedestrians.