1. Beef is a normal good. You observe that both the equilibrium price and quantity of beefhave fallen over time. Which of the following explanations would be most consistent with thisobservation?
(A) Consumers have experienced an increase in income, and beef-production technology hasimproved.
(B) The price of chicken has risen, and the price of steak sauce has fallen.
(C) New medical evidence has been released that indicates a negative correlation between aperson's beef consumption and life expectancy.
(D) Beef producers, concerned about the heaith of their customers, decided to produce relativelyless beef.