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 20 percent.All figures are in billions and each question should be answered independently of changes specified in all preceding ones. $\begin{array}{c}\begin{array}{lll}\quad\quad\quad\underline{\text { Assets}}\\\text { Reserves}\\\text { Securities}\\\text { Loans}\\\text { Property} \end{array}\begin{array}{l}\\\$ 200 \\300 \\500 \\400 \end{array}\begin{array}{lll}\quad\quad \underline{\text { Liabilities \& Net Worth }}\\\text { Checkable Deposits}\\\text { Stock Shares}\\\\\\\end{array}\begin{array}{lll}\\\$1,100\\400\\\\\\\end{array}\end{array}$

Refer to the given data.The commercial banking system has excess reserves of:

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