The ends of the femur are covered in a smooth, slippery substance called articular cartilage. This cartilage protects and cushions the bone when you bend and straighten your knee. The normal anatomy of the knee.
All of them are antidotes
Well its kinda like, if u have dirty dishes in other words missing or late assignments you feel held back but once you wash those dishes you feel free and motivated to keep washing those dishes (doing your work and getting it in on time) hope this helps
I would say skeletal, because it is a test to determine the body's sense of positioning , which requires a normal functioning of the spinal cord.
I would go with option B.