Why is bank interest charge not include in the bank reconciliation?

answer is B

9 At 31 March 2003, a customer's bank statement shows that his bank account is overdrawn by $10 136. Further information is as follows. $ cheques drawn, not presented 4998 cheques paid in, not credited 5896 bank interest charged, not in Cash Book 181 What is the correct bank balance to be shown in the customer's Balance Sheet at 31 March 2003? A $9057 overdrawn B $9238 overdrawn C $10 853 overdrawn $11 034 overdrawn D