Table $6-1$

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 $\backslash$$$2$ above the equilibrium price in this market.

$\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|\}$

$\backslash$hline $\backslash$begin$\{$tabular$\}\{$c$\}$

Price $\backslash \backslash$

$($Dollars per $\backslash \backslash$

unit$)$

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$c$\}$

Quantity $\backslash \backslash$

Demanded $\backslash \backslash$

$($Units$)$

$\backslash$end$\{$tabular$\}$ & $\backslash$begin$\{$tabular$\}\{$c$\}$

Quantity $\backslash \backslash$

Supplied $\backslash \backslash$

$($Units$)$

$\backslash$end$\{$tabular$\}\backslash \backslash$

$\backslash$hline $0$ & $15$ & $0\backslash \backslash$

$\backslash$hline $1$ & $13$ & $3\backslash \backslash$

$\backslash$hline $2$ & $11$ & $6\backslash \backslash$

$\backslash$hline $3$ & $9$ & $9\backslash \backslash$

$\backslash$hline $4$ & $7$ & $12\backslash \backslash$

$\backslash$hline $5$ & $5$ & $15\backslash \backslash$

$\backslash$hline $6$ & $3$ & $18\backslash \backslash$

$\backslash$hline

$\backslash$end$\{$tabular$\}$

Refer to Table $6-1.$ How many units of the good are purchased after the imposition of the price floor?

a$.9$

b$.5$

c$.10$

d$.15$