13. Swap Inc. is a wholesale jewelry company that sells watches from Switzerland to stores in the United States. In 2020, Swap had sales of $1,300,000, half of which were on credit. Accounts receivable (gross) at the end of 2020 was $450,000, and 2 of the A/R balance was from last year and 2 from this year. The company determined that 20% of those accounts greater than a year were uncollectible and 10% of those within a year were uncollectible. Before adjustment, the Allowance for Uncollectible Accounts had a debit balance of $4,500. The adjusting journal at year end would require debiting bad debt expense for: a. $36,000 b. $65,000 c. $67,500 d. $72,000