The Accompanying Table Contains Hypothetical Data for an Economy

$$\begin{array} { | l | r | } \hline { \text { Item } } & \text { Billions of Dollars } \\\hline \text { Checkable Deposits } & \$ 2,000 \\\hline \text { Small Time Deposits } & 350 \\\hline \text { Currency Held by the Public } & 80 \\\hline \text { Savings Deposits, Including Money-Market Deposit Accounts } & 1,300 \\\hline \text { Money-Market Mutual Funds Held by Individuals } & 600 \\\hline \text { Money-Market Mutual Funds Held by Businesses } & 700\\\hline\end{array}$$ The accompanying table contains hypothetical data for an economy. The size of the M2 money supply is

A) $3,730 billion.
B) $3,980 billion.
C) $4,330 billion.
D) $4,470 billion.