Refer to the Accompanying Table

$$\begin{array} { | l | c | } \hline { \text { Item } } & \text { Billions of Dollars } \\\hline \text { Checkable Deposits } & \$ 598 \\\hline \text { Small Time Deposits } & 818 \\\hline \text { Currency } & 644 \\\hline \text { Money-Market Mutual Funds Held by Businesses } & 1,045 \\\hline \text { Savings Deposits, Including Money-Market Deposit Accounts } & 2,866 \\\hline \text { Money-Market Mutual Funds Held by Individuals } & 979 \\\hline\end{array}$$ Refer to the accompanying table. The size of the M1 money supply is

A) $1,242 billion.
B) $598 billion.
C) $644 billion.
D) $2,060 billion.