Montgomery & company are accounting for their bad debts. the company uses the accrual method of accounting. during the current year, m& c has $42,000 in accounts receivable. the estimated bad debts for the period is $2,000 using the allowance method of accounting for uncollectible accounts. the amount of accounts actually written off during the period is $1,700. what is the amount of bad debt expense that can be deducted for tax purposes?