Refer to the Table

$$\begin{array} { | c | c | c | c | c | } \hline ( 1 ) & ( 2 ) & ( 3 ) & ( 4 ) & ( 5 ) \\Q _ { d } & Q _ { d } & \text { Price } & Q _ { S } & Q _ { S } \\\hline 50 & 40 & \$ 10 & 70 & 80 \\\hline 60 & 50 & 9 & 60 & 70 \\\hline 80 & 60 & 8 & 50 & 60 \\\hline 90 & 70 & 7 & 40 & 50 \\\hline 100 & 80 & 6 & 30 & 40 \\\hline\end{array}$$ Refer to the table. Suppose that demand is represented by columns (3) and (2) and supply is represented by columns (3) and (5) . If the price were arti?cially set at $9,

A) the market would clear.
B) a surplus of 20 units would occur.
C) a shortage of 20 units would occur.
D) demand would change from columns (3) and (2) to columns (3) and (1) .