The ledger for Bravo Co. includes the selected accounts (on June 30.2020 before adjusting entries have been prepared): Supplies 27,000; prepaid insurance 4,800; unearned revenue 400,000. If you knew that one fourth of unearned revenue unadjusted balance was not recognised as revenue by the end of the period, what would the adjusting entry on June.30 be? (the company prepares monthly Financial statements): Select one: a. Debit service revenue 300,000; Credit unearned revenue 300,000. b. Debit unearned revenue 400,000; credit service revenue 400,000. c. Debit unearned revenue 300,000; credit service revenue 300,000. d. Debit unearned revenue 100,000; credit service revenue 100,000