شابتر 3 الــ equilibrium

[وردي أحمر]

70) Coffee and sugar are complements. If the supply curve of coffee shifts leftward because of poor weather, then there will be
A) an increase in the price of sugar.
B) a decrease in the price of sugar.
C) a leftward shift of the demand curve for coffee.
D) a leftward shift of the supply curve for sugar.