Jefferson uses the percent of sales method of estimating uncollectible expenses. based on past history, 2% of credit sales are expected to be uncollectible. sales for the current year are $5,550,000. which of the following is correct? a) bad debt expense is estimated to be $11,100.b) uncollectible accounts are estimated to be $111,000.c) uncollectible accounts are estimated to be $55,500.d) bad debt expense is estimated to be $5,550.