The Figure Below Shows the Demand (D) and Supply (S)

The figure below shows the demand (D) and supply (S) curves of corn syrups.Figure 21.3

-The effect of an import quota on the domestic market is to shift the:

A) demand curve to the right by the amount of the quota.
B) demand curve to the left by the amount of the quota.
C) supply curve to the right by the amount of the quota.
D) supply curve to the left by the amount of the quota.
E) consumers' marginal utility curves if they prefer foreign goods to domestic goods.