Which of the following is NOT a cause of skidding?

Skidding primarily occurs when a vehicle loses traction with the road surface, which can be influenced by various driving behaviors. The correct answer indicates that "under braking" is not a cause of skidding.

When a driver applies too much brake pressure under normal conditions, especially on slick surfaces, it can lead to a skid. However, the term "under braking" suggests a situation where insufficient braking force is used, which is typically not associated with losing traction and skidding. Instead, proper braking should be applied to maintain control of the vehicle and prevent skidding.

Conversely, over-acceleration, over-steering, and driving too fast all contribute to the loss of traction. Over-acceleration can lead to the drive wheels spinning too quickly, reducing their grip on the road. Over-steering can cause the rear wheels to lose traction, leading to a spin. Additionally, driving too fast can result in a vehicle exceeding the friction limits of the tires, causing them to skid during turns or sudden maneuvers.