McCloud Realty received a cheque for $21,000 on July 1, which represents a 6- month advance payment of rent on a building it rents to a client. Unearned Rental Revenue was credited for the full $21,000. Financial statements will be prepared on July 31. McCloud Realty should make the following adjusting entry on July 31: debit Unearned Rental Revenue, $3,500; credit Rental Revenue, $3,500. debit Rental Revenue, $3,500; credit Unearned Rental Revenue, $3,500. debit Unearned Rental Revenue, $21,000; credit Rental Revenue, $21,000. debit Cash, $3,500; credit Rental Revenue, $3,500