(2 points) Suppose there is no cash drain in the banking system and the commercial banks' desired reserve ratio is 20 percent. If the Bank of Canada purchases $500,000 worth of government bonds from the public, the public's deposits at the commercial banks will eventually increase by __________ and the banks' reserves will increase by __________. a. $2,500,000; $2,000,000. b. $2,500,000; $500,000. c. $2,000,000; $500,000. d. $500,000; $100,000. e. $400,000; $100,000