Harris Company had checks outstanding totaling $5,364 on its May bank reconciliation. In June, Harris Company issued checks totaling $39,798. The June bank statement shows that $26,939 in checks cleared the bank in June. A check from one of Harris Company's customers of $305 was also returned marked "NSF." Determine the amount of outstanding checks on Harris Company's June bank reconciliation.

Select the correct answer.

$17,918

$18,223

$21,575

$66,737