The following table contains the demand schedule and supply schedule for a market for a particular good. Suppose sellers of the good successfully lobby Congress to impose a price floor $3 above the equilibrium price in this market.
Price Quantity Demanded Quantity Supplied
$0 15 0
$1 13 3
$2 11 6
$3 9 9
$4 7 12
$5 5 15
$6 3 18
How many units of the good are sold after the imposition of the price floor?
A. 3
B. 9
C. 15
D. 18