Figure 8-11 -Refer to Figure 8-11.Neither a Shift of the Demand Curve

Multiple Choice

Figure 8-11
-Refer to Figure 8-11.Neither a shift of the demand curve nor a shift of the supply curve is shown on the figure.However,we know that,when the tax is imposed,

A) the demand curve will shift.
B) the supply curve will shift.
C) either the demand curve or the supply curve will shift.
D) None of the above are correct;the tax causes neither the demand curve nor the supply curve to shift.