Final answer:
The amount that should be debited to Bad Debt Expense and credited to Allowance for Doubtful Accounts in the year-end adjusting entry is $4,950.
Step-by-step explanation:
The amount that should be debited to Bad Debt Expense and credited to Allowance for Doubtful Accounts in the year-end adjusting entry is $4,950. Bad Debt Expense is calculated by multiplying the percentage of uncollectible receivables (5%) by the total accounts receivable ($100,000), resulting in $5,000. We then subtract the balance of the Allowance for Doubtful Accounts ($1,000) to get $4,000. Finally, we adjust the amount by the amount already reserved in the Allowance for Doubtful Accounts, which is $50 ($5,000 - $1,000). So, the answer is option e. $4,000.