please solve it in 10 mins I will thumb you up

The above balance sheet pertains to a bank. Deposits consist only of demand deposits (checkable deposits). The required reserve ratio is RRR=10%. Someone withdraws $40 from her deposit account. Which of the following balance sheets represents the ultimate balance sheet after the completion of this transaction (after the withdrawal takes place and after the bank takes the necessary steps to comply with the Fed's reserve requirements). Balance Sheet A Balance Sheet B Balance Sheet C Balance Sheet D