If a vehicle has radial tires, how should they be mounted?

Answer: C — On all four wheels

When a vehicle is equipped with radial tires, it is crucial to mount them on all four wheels. Radial tires have specific characteristics that differentiate them from bias-ply tires, including a construction style that allows for better traction, improved handling, and longer tread life. By mounting radial tires on all four wheels, you ensure uniform performance across the vehicle, promoting balanced handling and stability. Using radial tires only on specific wheels could lead to uneven wear patterns and compromised driving dynamics. For example, if radial tires are placed on only the front while bias-ply tires are on the rear, the vehicle may experience unpredictable handling and reduced stability, particularly during turns or sudden maneuvers. Therefore, for optimal safety and performance, it's best practice to install radial tires on all four wheels.