Answer:c. correlation
Step-by-step explanation:
Correlation means there is an association between two variables , which means there is observable relations between the two.
Correlation can happen in three ways a positive , negative and zero correlation
A positive correlation occurs when both variables increase and decrease all at once , so when one variable decreases this other variable also decreases. For example as the taller the person the heavier they get so height and weight increase at the same time.
A negative correlation occurs when there is an opposite relationship such that when one variable decreases the other one increases. When you climb the mountain the temperature decreases , hence an increase in height (mountain climb)leads to a decrease in temperature.
A zero correlation means no association exist.
In this case above we see a correlation between watching TV and being knowledgeable , the more people watch TV news the less knowledgeable they become which means there is a negative correlation, the more you watch TV news the lesser the knowledge you will have.