What does a sign that indicates a "No U-turn" mean?

Answer: C — No U-turns are allowed

A sign indicating "No U-turn" clearly communicates that drivers are prohibited from making U-turns at that location. A U-turn involves turning a vehicle 180 degrees to go in the opposite direction, which can be hazardous in areas of high traffic or where visibility is limited. The purpose of this sign is to enhance safety by preventing potentially dangerous turning movements that could lead to collisions, especially in busy intersections or roadways where U-turns could create confusion. Recognizing a "No U-turn" sign helps drivers make better decisions while navigating roadways, ensuring compliance with traffic regulations and maintaining traffic flow. It reinforces the importance of following posted signs for the safe operation of vehicles on the road.