Answer:
B. Accounts Receivable
Explanation:
In the allowance method of accounting for uncollectible receivables the Uncollectible Accounts Expense is recognice against Allowance for Doubtful Accounts in advance to a customer's account became uncollectible acording to different variables. This is done at the closer of the financial period, like it follows: Uncollectible Accounts Expense(Debit) - Allowance for Doubtful Accounts (Credit).
Then, when a customer's account became uncollectible the Uncollectible Accounts Expense is already recognise, so you write off the customer's account agaisnt the Allowance for Doubtful Accounts like it followws: Allowance for Doubtful Accounts (Debit) - Accounts Receivable (Credit).
Therefore the general ledger account credited to write off a customer's account as uncollectible is Accounts Receivable
