D because your calf muscle is under your knee in back to if it’s already built up and can go to the heel bone because the calf muscle is connected to the heel bone
Iodine is a non-metallic, dark-gray/purple-black, lustrous, solid element.
I think it is A because they can just destroy it but D is finding something natural to kill it off but it is GM so it wouldn't help so A
ok, with what I don't see anything upload please