Astatic stretch is safe, because it requires a partner or machine for assistance safe, because it stretches the muscle and joint without causing pain unsafe, because it involves holding a position for 15-30 seconds unsafe, because it uses the body's momentum to stretch the muscle

The correct answer will be option-because it stretches the muscle and joint without causing pain unsafe

Explanation:

Static stretching is a type of stretching activity which involves the movement of muscles and joints to its farthest point and holding it for 20-30 seconds.

The static stretching helps relax the muscles and increase the flexibility of the muscles which should be performed only after the exercise as studies have suggested that static stretching before exercise weakens the muscles.

Since static attaching involves the movement of the joints and muscles of the body therefore the selected option is the correct answer.

d would be your answer