I want to say A - all thou some schools do have health insurance in a few states
Silent mutation are cause by a point mutation and have no effect of the function because they code for the same amino acid
mutations is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke (almost like cancer)
The first comes from the word accord and refers to a harmonious combination of three or more musical notes. The second is an alteration of cord, taking its spelling from Greek chorda, "string, gut," by way of Latin. This is the mathematical chord—a line segment that joins two points on a curve
The tampon use is the right answer.