All of Roberts Company's sales are on a credit basis. The following information is available for 2015 Allowance for doubtl accounts of 1/1/18 Sales Sales refur Account willen off as acollectible $12.000 435.000 40 000 10.000 Roberts provides for doubtful accounts expense at the rate of 3% of net sales. Following adjusting entries at December 31, 2015 the allowance foc doubtful account balance will be Select one: Da $15,050 Ob $13,050 OC 513.050 od $11,850 59,850