What Is NOT a Difference Between the Allowance Method and the Direct-Write

What is NOT a difference between the Allowance method and the Direct-write Off method?

A) The Direct Write-Off method is used if bad debts have a material impact on the financial statements.
B) Direct Write-Off is used for tax purposes.
C) The Allowance method estimates bad debts and establishes a reserve for uncollectible accounts.The Direct Write-off method records bad debt expense at the specific time a customer's account becomes uncollectible.
D) In both methods,an uncollectible account credits accounts receivable,however,what is debited is different depending on what method is used.