Answer:
The correct answer would be the skeletal system, muscular system, and nervous system.
The skeletal and muscular systems are involved in making any kind of movement as well as maintaining the body posture.
The nervous system control and coordinate the movement and posture of the body.
The nervous system controls the skeletal muscles to produce movement.
Skeletal muscles are connected to the skeletal system of the body. Thus, ultimately they produce movement in the skeletal system.