Table 7-11
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-Refer to Table 7-11

Multiple Choice

Table 7-11
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$$\begin{array} { | c | c | c | } \hline \begin{array} { c } \text { Price } \\\text { (Dollars per unit) }\end{array} & \begin{array} { c } \text { Quantity Demanded } \\\text { (Units) }\end{array} & \begin{array} { c } \text { Quantity Supplied } \\\text { (Units) }\end{array} \\\hline 12.00 & 0 & 36 \\\hline 10.00 & 3 & 30 \\\hline 8.00 & 6 & 24 \\\hline 6.00 & 9 & 18 \\\hline 4.00 & 12 & 12 \\\hline 2.00 & 15 & 6 \\\hline 0.00 & 18 & 0 \\\hline\end{array}$$ ​
-Refer to Table 7-11. Both the demand curve and the supply curve are straight lines. If the price is $4 but only 6 units are bought and sold, consumer surplus will be

A) $21.
B) $28.
C) $36.
D) $42.