Suppose the Fed Purchases $5,000 in U

Suppose the Fed purchases $5,000 in U.S. government securities from the Last National Bank and the Last National Bank's account at the Federal Reserve district bank increases by $5,000. Which of the following is a result of this transaction?

A) The Last National Bank's balance sheet will show a change in the composition of its assets.
B) Both the Last National Bank's assets and its liabilities will rise by $5,000.
C) Both the Fed's assets and its liabilities will fall by $5,000.
D) Only the Fed's liabilities will change, while its assets will remain unchanged.
E) This transaction will decrease the money supply.