Final answer:
All the given options are characteristics of proficient punting in football, contributing to a stable, powerful, and precise kick.
Step-by-step explanation:
The correct answer is (D) All of the above. Each point listed is a characteristic of proficient punting in football. Taking a short step onto the supporting leg provides stability and control, allowing for a precise and powerful kick. Using the arm in opposition to the legs after the ball is dropped helps maintain balance and improve the body's biomechanics during the punt. Keeping a slight bend in the knee at ball contact ensures that the leg can act like a whip, increasing the force transferred to the ball. All these factors play a role in achieving a strong and accurate punt.