Credit sales 172,000 collections on accounts receivable during the year 170,000 cash sales 818,000 unadjusted debit balance in allowance for doubtful accounts 40 sales returns and allowances for credit sales 2,000 accounts receivable, beginning 14,000.If expected bad debts are estimated to be 1 1/2% of ending accounts receivable, the adjusting entry to recognize bad debts will include a debit to bad debt expense for a) $170 b)$190 c) $250 d) $210