The set of items below was identified in preparing a bank reconciliation for Mars Corp. as of August 31, 2017. $19,500 2,700 Bank statement balance Mars's book balance (before adjustments) Outstanding checks Customer's NSF check Service charges Deposit in transit Interest earned on checking account 350 100 1.000 60 Mars Corp.'s balance per books before the reconciliation is Oa. $17.410, Ob. $17.900. Oc. $18,190. Od. $18,310