The answer is B.4.This will help.
It's called the Z codes
Z codes are a special group of codes provided in ICD-10-CM for the reporting of factors influencing health status and contact with the health services.
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.