Answer:
A. Option (d) is correct.
B. Option (a) is correct.
Step-by-step explanation:
Given that,
Ending inventory(2018) = $9,000
Ending inventory(2017) = $24,000
Depreciation expense(2018) = $6,000
Depreciation expense(2017) = $18,000
A. 2018 income before taxes be overstated or understated:
= Ending inventory + Depreciation expense(2018)
= $9,000 + $6,000
= $15,000 overstated
B. Retained earnings at December 31, 2018 be overstated or understated:
= Depreciation Expense for 2017 - Depreciation Expense for 2018 - Ending inventory
= $18,000 - $6,000 - $9,000
= $3,000 understated