Allowance for doubtful accounts will have a. an unadjusted debit balance at the end of the period if the write-offs during the period were less than the beginning balance. b. an unadjusted credit balance at the end of the period if the write-offs during the period were more than the beginning balance. c. an unadjusted credit balance at the end of the period if the write-offs during the period were less than the beginning balance. d. an unadjusted debit balance at the end of the period if the write-offs during the period were equal to the beginning balance.