D or A (these are one of the right question)
The answer is A - Grasp the fin tip of the affected leg and pull towards you while straightening the leg. This stretches the calf muscle.
The answer that would best complete the given statement above would be the KIDNEYS. Yes, you are right. <span>The main process of excretion takes place in the kidneys. The kidneys filters the blood and this is the one responsible for excreting the waste products in the body in a form of urine. Hope this helps.</span>
