Oaktre Company reported accounts receivable and an allowance for uncollectible accounts of$90,000 and$2,000,respectively,at December 31,2020.During 2021,Tracy's credit sales and collections were$500,000 and$435,000,respectively,and$1,600 in accounts receivable were written off.For 2021,Tracy estimates bad debt expense at 1% of credit sales. Tracy's 2021 bad debt expense is: a.1,600. b.4,350. c.5,000. d.1,534.