An aging of a compamy's accounts receivable indicates that $8200 are estimated to be uncollectible. If Allowance for Doubtful Accounts has a $3400 eredit balance, the adpustment to record bad debts for the period will require a debit to Bad Debt Expense for $8200 credit to Allowance for Doubtful Accounts for 58200 debit to Allowance for Doubthul Accounts for \$4800 debit to Bad Debt fxpeme for $4800