The Accompanying Table Gives Data for a Commercial Bank or |

Multiple Choice

$$\begin{array} { | c | c | c | c | c | } \hline & \text { Reserve Requirement (\%) } & \text { Checkable Deposits } & \text { Actual Reserves } & \text { Excess Reserves } \\\hline ( 1 ) & \underline { W } & \$ 100,000 & \$ 10,000 & \$ 0 \\\hline ( 2 ) & 8 & \underline { X } & 20,000 & 12,000 \\\hline ( 3 ) & 12 & 200,000 & \underline { Y } & 8,000 \\\hline ( 4 ) & 20 & 300,000 & 70,000 & \underline { Z } \\\hline\end{array}$$ The accompanying table gives data for a commercial bank or thrift. In row 4, the number appropriate for space Z is

A) $10,000.
B) $70,000.
C) $48,000.
D) zero.