An aging of a company's accounts receivable indicates the estimate of uncollectible receivables totals $5,278. If Allowance for Doubtful Accounts has a $858 credit balance, the adjustment to record the bad debt expense for the period will require a O a. debit to Bad Debt Expense for $5,278. O b. debit to Bad Debt Expense for $858. O c. debit to Bad Debt Expense for $4,420. O d. credit to Allowance for Doubtful Accounts for $5,278