Harris Company had checks outstanding totaling $5,586 on its May bank reconciliation. In June, Harris Company issued checks totaling $38,862. The June bank statement shows that $26,716 in checks cleared the bank in June. A check from one of Harris Company's customers of $462 was also returned marked "NSF." Determine the amount of outstanding checks on Harris Company's June bank reconciliation.

a. $17,270

b. $65,578

c. $21,130

d. $17,732