If a bank has $1,000,000 in reserves and checking deposits of $3,000,000, what is the bank's reserve position if the required reserve ratio is 20 percent?

a. The bank has $500,000 of required reserves and $500,000 of excess reserves.

b. The bank has $600,000 of required reserves and $400,000 of excess reserves.

c. The bank has $400,000 of required reserves and $600,000 of excess reserves.

d. The bank has $200,000 of required reserves and $800,000 of excess reserves.