AOZ Ltd. offers warranties on all their products. They estimate warranty expense at 4% of sales. At the beginning of 2020, the estimated warranty payable account had a credit balance of $4.000. During the year, AOZ made sales amounted to $250,000 and paid out $5,000 in warranty payments. At the end of the year, what would be the closing balance in the estimated warranty payable account? $14,000 $10,000 $4,000 $9,000 O $5,000