On September 1 of the current year, Hurkacz Company received $9,000 for legal services to be performed evenly throughout the next six months. The adjusting entry on December 31 of the current year would include a: credit to Service Revenue of $6,000. credit to Unearned Service Revenue of $6,000. debit to Unearned Service Revenue of $1,500. debit to Service Revenue of $1,500