Thompson Company gathered the following reconciling information in preparing its October bank reconciliation: Cash balance per bank, October 31 Note receivable collected by bank Outstanding checks Deposits in transit Bank service charge NSF check $17,000 4,800 6,500 3,000 50 2,300 Using the above information, determine the cash balance per books (before adjustments) for Thompson Company. Oa. $15,950 O b. $11,050 Oc. $19,450 O d. $11,150