Answer:
not 100%sure but I think it's option A.
The answer is D “Plaque can build up and prevent oxygen from reaching the brain”.
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.
Well the answer is c, the pancreas is not a gland anyways.