Information regarding The Curtis Group for 2019 is presented below: $15,000 1/1/19 Allowance for Doubtful Accounts balance credit . During 2019, total uncollectible customer accounts written off 12/31/19 Accounts Receivable balance $13,000 $160,000 If management is estimating that 10% of the 12/31/19 Accounts Receivable balance will be uncollectible, then what is the amount of the adjustment at 12/31/19 to Allowance for Doubtful Accounts? $13,000 $14,000 $16,000 $29.000