Which correlation is most likely a causation? a. the negative correlation between the number of people who order eggs in a restaurant and the number of people who sit by a window b. the positive correlation between the number of trucks that drive on a road and the amount of maintenance the road needs c. the negative correlation between the sales of picture frames and the sales of handbags in a store d. the positive correlation between the number of cars in a home’s driveway and the amount of mail in the mailbox