Answer:
A) credit to Retained Earnings for $4,780.
Explanation:
Temporary accounts (includes all revenues and expenses) must be closed against the income summary account. Then the income summary account is closed against retained earnings, and depending on whether the company made a profit or not, the retained earnings account will be debited or credited.
In this case, the net income after taxes is $4,780, so that means that retained earnings will increase (should be credited), so the closing journal entry should be:
Dr Income summary 4,780
Cr Retained earnings 4,780
Rental Revenue 37,000
Service Revenue 1,300
Wages Expense (19,000 )
Depreciation Expense (1,800 )
Utilities Expense (320 )
Insurance Expense (700 )
Maintenance Expense (9,000 )
Income Tax Expense (2,700)
net income after taxes $4,780