What could indicate that a tire is under-inflated?

Answer: B — Uneven wear patterns and decreased fuel efficiency

Under-inflation of a tire can lead to several observable signs, with uneven wear patterns and decreased fuel efficiency being particularly indicative of this issue. When a tire is not inflated to the manufacturer's recommended pressure, it tends to make more contact with the road surface than it should. This can cause the tread to wear down unevenly, especially on the edges, as a greater surface area is in contact with the ground. Over time, the tire will show significant wear discrepancies, which are a clear indication of improper inflation. Additionally, an under-inflated tire requires the vehicle to exert more effort to move, which directly impacts fuel efficiency. When tires are not properly inflated, they create additional rolling resistance, leading to increased fuel consumption as the engine works harder to maintain speed. Recognizing these signs is essential for drivers, as maintaining proper tire inflation is crucial for vehicle safety and efficiency.