A commercial bank has checkable-deposit liabilities of $500,000, reserves of $150,000, and a required reserve ratio of 20 percent. The amount by which a single commercial bank and the amount by which the banking system can increase loans are respectively:________.a. $30,000 and $150,000.b. $50,000 and $250,000.c. $50,000 and $500,000.d. $100,000 and $500,000.
