If Congress Decides to Increase the Tax Per Pack Paid

If Congress decides to increase the tax per pack paid by sellers of cigarettes, other things being equal, the price of cigarettes will rise. This rise in prices can be attributed to a(n) :

A) upward movement along the supply curve for cigarettes.
B) rightward shift of the supply curve for cigarettes.
C) upward movement along the demand curve for cigarettes.
D) leftward shift of the supply curve for cigarettes.