On July 1, a client paid an advance payment (retainer) of $5,000 to cover future legal services. During the period, the company completed $3,500 of the agreed-on services for the client. There was no beginning balance in the Unearned Revenue account for the period. Based on the information provided, . Make the December 31 adjusting journal entry to bring the balances to correct. If journal entry is required, please select at least one debit entry and one credit entry. If journal entry is not required, please select "no entry required". 1. Cash $5,000 2. Service Revenue $3,500 Debit 3. Service Revenue $5,000 Credit 4. Unearned Revenue $3.500 5. Unearned Revenue $5,000 6. No entry required