8th Algebra Which of the following correlations would be an example of causation?

Question 1 options:

A. a positive correlation between the number of prisons in an area and the number of hospitals in that area

B. a positive correlation between the number of hours spent studying and the grade earned on a test

C. a negative correlation between the number of cell phones sold per year and the number of people born per year

D. a negative correlation between the amount of ice cream sales and the number of crimes committed in a city