Please explain in detail, thank you

22. Biden Corp. reports on a calendar-year basis. Its 2007 and 2008 financial statements contained the fol- lowing errors: Over (under) statement of ending inventory .... Depreciation understatement ....... Failure to accrue salaries at year end ..... 2007 $(10,000) 4,000 8,000 2008 $ 4,000 6,000 12,000 As a result of the above errors, 2008 income would be a. overstated by $4,000. b. overstated by $24,000. c. overstated by $22,000. d. overstated by $16,000