Answer:
a) Negative correlation
Explanation:
Negative correlation is a term which basically explains a relationship between to variables in which increase in one variable causes a decrease in the other variable and vice versa. As in the given scenario, the more frequently the teeths are brushed ( variable is increasing ) the less likely is the chance to develop cavities (variable is decreasing)
Hence a)negative correlation is the right answer.
<span>The reason that some states have enacted laws banning or limiting the use of tobacco, most likely, is that they are interested in promoting good health and having prosperous society. It was proven that the use of tobacco has certain negative effects in the body not only to the one using but also to the people around. The states which support the limiting and that banning of tobacco just want to protect and preserve the health of their people.</span>
It is normally 100-120 so it is the first option. I hope this helps you.