ABC Company estimated the net accounts receivable balance as of December 31,2020 , to be $165,000, after taking into account bad debt expense. ABC also provided the following information: - The gross accounts receivable balance (before a bad debt adjustment) on December 31, 2020 was $175,000. - Uncollectible accounts receivable written-off during 2020 totaled $12,000. - The allowance for doubtful accounts balance on January 1, 2020 was $15,000. How much is ABC's 2020 bad debt expense? $7.000. $13.000 $3,000 $10,000