I need help with this question

A commercial bank has excess reserves of $5000 and a required reserve ratio of 20 percent. It makes a loan of $5500 to a borrower. The borrower writes a check for $5500 that is deposited in another commercial bank. After the check clears, the first bank will be short of reserves in the amount of: $1000 $5000 $6000 $500 $5500