-Refer to Exhibit 3-5

-Refer to Exhibit 3-5.In the market shown,a rightward shift in demand from D₁ to D₂ could have been caused by

A) an increase in the number of sellers in the market.
B) an improvement in technology in the production of this good.
C) a decrease in buyers' income (assuming the good is an inferior good) .
D) a decrease in buyers' income (assuming the good is a normal good) .
E) a and b