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Before the adjusting entry is made to record the bad debt expense for the current year, a company shours a 515,000 debit balance in Allowance for Doubtful Accounts (AFDA). Required: What caused the AFDA balance to have an unadjusted debic balance? a. The estimated bad debts expense in prior years' was higher than the accounts written off. Solect one: b. The estimated bad debts expense in prior years' was lower than the accounts written off. c. Cash collected from customer accounts was higher than es: d. There was no write-offs during the year