Suppose the Market Demand Function for Ice Cream Is Q^d=10-2Pand

Suppose the market demand function for ice cream is Q^d=10-2Pand the market supply function for ice cream is Q^s=4P-2, both measured in millions of gallons of ice cream per year. Suppose the government imposes a $0.50 tax on each gallon of ice cream. The consumer surplus with the tax is

A) $3
B) $1.80
C) $2
D) $1.20