Suppose that, while in a squatting position, you stand on your hands, and then you pull up on your feet with a great deal of force. You are applying a large force to the bottoms of your feet, but no matter how strong you are, you will never be able to lift yourself off the ground. Use your understanding of force and motion to explain why this is not possible. A. You can't lift yourself off the floor because the net external and internal forces on you are still zero. B. You can't lift yourself off the floor because the net external force on you is still zero. C. You can't lift yourself off the floor because the net internal force on you is still zero. D. None of the above.