Answer questions 24- 25 please dont understand the process and steps to get there.

the accountant for the William Company forgot to make an adjusting entry to record revenue earned but not yet billed to customers . The effect of this error would be : AL B . An overstatement of net income and an understatement of assets . C. An understatement of assets , net income , and owner's equity . D. An overstatement of liabilities offset by an understatement of owner's equity . E. An overstatement of assets and of net income offset by an understatement of owner's equity . None of the above . Dave Corporation , which maintains its accounts on the basis of a fiscal year ending June 30, began the management of an office building on June 1 for an agreed monthly fee of $400 . The First cash receipt was due on July 5 . The adjusting entry required at June 30 would be :` A B . A $400 debit to Unearned Rental Commissions and a $400 credit to Rental Commissions Earned . A debit to Cash for $400 and a credit to Rental Commissions Earned . A debit to Cash for $400 and a credit to a liability for $400 . A debit to Rental Commissions Receivable for $400 and a credit to Rental Commissions Earned None of the above