Respuesta :
Answer:
C is the correct answer.
Explanation:
You can automatically eliminate B and D because they have little to do with the movement of the body. And it's not A because the skeletal system doesn't have the signals to tell the muscular system what to do.
I would say is A, because b & D aren't related to movement and C is your skin, hair, nails... but A is about your bones and I'm pretty sure you can't move without them