-In the Above Figure,________ Will Shift the Demand Curve from D

-In the above figure,________ will shift the demand curve from D to D₁.

A) a fall in the cost of producing pizza
B) a scientific article published that demonstrates eating pizza is good for one's health
C) an increase in income if pizza is an inferior good
D) buyers' expectations that pizza will be less expensive next week
E) a decrease in the price of a hamburger,a substitute for pizza