If Demand Is Perfectly Inelastic and the Supply Curve Is

Multiple Choice

If demand is perfectly inelastic and the supply curve is upward-sloping,then the burden of an excise tax is:

A) borne entirely by consumers.
B) borne entirely by producers.
C) shared by consumers and producers,with the burden falling mainly on consumers.
D) shared by consumers and producers,with the burden falling mainly on producers.