In an Effort to Deter Alcohol Consumption by Youths,raising the Legal

In an effort to deter alcohol consumption by youths,raising the legal age for alcohol consumption causes a _____ the demand curve for alcohol,while raising the federal
Per unit tax on alcohol would cause a _____ the demand curve.

A) movement along;leftward shift of
B) rightward shift of;movement along
C) leftward shift of;movement along
D) movement along;rightward shift of