If the Fed buys securities worth $20 million from a commercial bank, the Fed's balance sheet will show a. a decrease in securities held of $20 million and a decrease in bank reserves of $20 million. b. an increase in securities held of $20 million and an increase in bank reserves of $20 million.c.an increase in securities held of $20 million and a decrease in bank reserves of $20 million d.a decrease in securities held of $20 million and an increase in bank reserves of $20 million