Karr Corporation received cash of $6532 on August 1, 20x8 for one year's rent in advance and recorded the transaction with a credit to Rent Revenue. The December 31, 20x8 adjusting entry is: Select one: O a. Debit Cash and credit Unearned Rent, $3810 Ob. Debit Rent Revenue and credit Unearned Rent, $3810 Oc. Debit Unearned Rent and credit Rent Revenue, $2722 Od. Debit Rent Revenue and credit Unearned Rent, $2722