At most restaurants, the more food you order, the more money you have to pay. This is true whether you go to an overpriced "gourmet" restaurant where the plates are tiny but very expensive, or to a cafeteria where the portions are huge and the prices cheap. If you collect data at any ONE restaurant, the correlation between the amount of food served per person and the price paid for it should be:
A. positive and fairly strong
B. negative and fairly strong
C. fairly weak