On December 28, 1. Greasy Catering Company completed $600 of catering services. As of December 31, the customer had not been billed nor had the transaction been recorded. Demonstrate the required adjusting entry by choosing the correct statement below. Debit Catering revenue for $600. O Debit Unearned revenue for $600. O Credit Accounts receivable for $600. Debit Accounts receivable for $600