On December 15, 2020, "A" Company made the following correct journal entry: Cash Unearned Rent Revenue 24,000 24,000 What transaction was the journal entry recording? $24,000 payment by "A" to rent an office space starting January 2021 $24,000 cash received by "A" from a tenant for rent beginning in January 2021 $24,000 rent payment received by "A" from a tenant for the month of December 2020 $24,000 of cash received by "A" from a tenant for rent owing from the year 2020