To avoid a power skid, what is the best practice?

Accelerating smoothly and gradually is the best practice to avoid a power skid because it allows for better control of the vehicle's traction. When you accelerate quickly, it can cause the wheels to spin too fast, especially on slippery or loose surfaces, which leads to loss of traction and potentially a skid. In contrast, a gradual increase in speed helps maintain traction between the tires and the road, thereby reducing the likelihood of losing control.

This method allows the tires to grip the surface better, enabling you to feel the vehicle's response more accurately. It promotes stability and control, which are crucial for safe handling of the vehicle, particularly in adverse weather conditions or on uneven terrain. The other options can result in dangerous driving conditions, such as abrupt changes in speed or direction that can lead to skidding.