The Market for Gasoline in May Is in Equilibrium, at a Market

Multiple Choice

The market for gasoline in May is in equilibrium, at a market clearing price of $4.50 per gallon. After Memorial Day, the demand curve for gasoline increases, which causes

A) the demand curve for gasoline to shift to the right, creating a shortage at $4.50 per gallon which causes the market clearing price of gasoline to rise.
B) the demand curve for gasoline to shift to the right, creating a shortage at $4.50 per gallon which causes the market clearing price of gasoline to fall.
C) the demand curve for gasoline to shift to the left, creating a shortage at $4.50 per gallon which causes the market clearing price of gasoline to rise.
D) the demand curve for gasoline to shift to the left, creating a shortage at $4.50 per gallon which causes the market clearing price of gasoline to fall.