Suppose that a disease that affects people who consume beef has been discovered in the United States. One likely result is:

Suppose that a disease that affects people who consume beef has been discovered in the United States. One likely result is:
A.a decrease in the quantity demanded of beef.
B.a decrease in demand for beef.
C.an increase in buyers’ reservation prices for beef.
D.a decrease in demand for chicken.
正确答案：a decrease in demand for beef.