The Accompanying Table Gives Data for a Commercial Bank or
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$$\begin{array} { | c | c | c | } \hline \text { (1) } & \text { (2) } & \text { (3) } \\\hline \text { Legal Reserve Ratio (\%) } & \text { Checkable Deposits } & \text { Actual Reserves } \\\hline 10 & \$ 40,000 & \$ 10,000 \\\hline 20 & 40,000 & 10,000 \\\hline 25 & 40,000 & 10,000 \\\hline 30 & 40,000 & 10,000 \\\hline\end{array}$$ The accompanying table gives data for a commercial bank or thrift. When the legal reserve ratio is 10 percent, the money-creating potential of this single bank is

A) $0.
B) $6,000.
C) $30,000.
D) $60,000.