You just carried out flex ion of the legs
The joint is the ball and socket hip joint
Well I cannot actually see any reasons,so I might as well just give my own.A drug might not recieve FDA approval because they need to find the good chemicals and the bad chemicals in the drug.If they find any bad chemicals in the drug,they will not approve it.Hope this helps!!!!
I believe the answer is A, it sounds the most reasonable.
None youre only allowed to give information they say youre allowed to
