The answer is letter B.
<span> Flexibility is a very important component in
exercise. Without flexibility the range of motion of joints will be limited
which will result to serious injuries. Often it is the most overlooked part of
a training program but if athletes knew of the benefits it could bring they
will surely be performing this in their programs. Flexibility can be developed
through a wide variety of active and passive stretches. It improves performance
because joints can easily move and are not restricted to perform the necessary
muscle contractions needed for a particular activity.</span>
Answer: Kidneys filter half a cup of blood every single minute to remove waste and extra water. They also remove acid. The water, waste, and acids form urine.