Throughout this quarter, we discussed that under current GAAP, managers can exercise their discretion (1.e., judgements and estimates) to varying degree in preparation for financial statements. Which of the following accounting treatment least likely allows managers to exercise their discretion? Adjusting journal entries for accrued interest expense and interest payable at the year-end Adjusting journal entries for expected sales returns at the year end Determination of allowance for doubtful accounts at the year end Determination of loss contingency at the year-end