Quinlan Company records $45,000 in the unearned service revenue account during the year. The ending balance of unearned service revenue is determined to be $18,000. The adjusting entry involves a: Select one: a. debit to service revenue for $18,000 b. debit to service revenue for $27,000 C. credit to service revenue for $27,000 d. credit to service revenue for $18,000 e credit to unearned revenue for $18,000