Answer:
Cash   ___________________ Not Closed
Supplies _________________Not Closed
Prepaid Insurance _________ Not Closed
Land  ___________________Not Closed  
Buildings ________________Not Closed
Equipment _______________Not Closed
Accounts Payable _________ Not Closed
Unearned Rent Revenue ____Not Closed
Mortgage Payable _________Not Closed
Common Stock ___________Not Closed
Rent Revenue ____________Closed
Salaries and Wages Expense_Closed
Utilities Expense __________ Closed
Advertising Expense _______ Closed
Interest Expense __________ Closed
Insurance Expense _________Closed
Supplies Expense __________Closed
Depreciation Expense _______Closed  
Explanation:
In accounting, there are two types of accounts
- Temporary
- Permanent
Temporary
Temporary accounts are closed at the end of each accounting period and new balance are maintained for the new period.
Expense and Income accounts are temporary accounts and these accounts are closed in the retained earning account of the balance share.
In this question following accounts are temporary accounts and these are needed to be closed at the end of the period.
Rent Revenue  
Salaries and Wages Expense
Utilities Expense  
Advertising Expense
Interest Expense 
Insurance Expense
Supplies Expense  
Depreciation Expense
Permanent Accounts
Permanent accounts are not closed at the end of each accounting period and they carried their net and accumulated balance in the next period.
Assets, Equity, and Liabilities accounts are permanent accounts.
In this question following accounts are permanent accounts
Cash    
Supplies  
Prepaid Insurance  
Land
Buildings  
Equipment  
Accounts Payable  
Unearned Rent Revenue  
Mortgage Payable  
Common Stock