Isostatic stretching is a flexibility training which is in a advanced form. It should be performed with CAUTION. It is important to avoid isostatic stretches because they can disrupt muscle growth and it fatigue the muscles. Its recommended to do some warm up before doing these stretches honestly.
The answer is D, none of the above
Words of such are like astonished and surprised
John, "Mr. Calm," starts getting into fights at school