Answer the Question on the Basis of the Following Consolidated

Answer the question on the basis of the following consolidated balance sheet of the commercial banking system.Assume that the reserve requirement is 10 percent.All figures are in billions and each question should be answered independently of changes specified in any preceding ones. $\begin{array}{c}\begin{array}{lll}\quad\quad\quad\underline{\text { Assets}}\\\text { Reserves}\\\text { Securities}\\\text { Loans}\\\text { Property} \end{array}\begin{array}{l}\\\$ 60 \\140 \\260 \\400 \end{array}\begin{array}{lll}\quad\quad \underline{\text { Liabilities \& Net Worth }}\\\text { Checkable Deposits}\\\text { Stock Shares}\\\\\\\end{array}\begin{array}{lll}\\\$600\\260\\\\\\\end{array}\end{array}$
Refer to the given data.The commercial banking system has excess reserves of:

A) $10 billion.
B) $5 billion.
C) $2 billion.
D) zero.