For each of the following items before adjustment, indicate the type of adjusting entry (prepaid expense, unearned revenue, accrued revenue, or accrued expense) that is needed to correct the misstatement. If an item could result in more than one type of adjusting entry, indicate each of the types.

(a) Assets are understated.
(b) Liabilities are overstated.
(c) Liabilities are understated.
(d) Expenses are understated.
(e) Assets are overstated.
(f) Revenue is understated.