13. Kamel is a lawyer who requires that his clients pay him in advance of legal services rendered. Kamel routinely credits Service Revenue when his clients pay him in advance. In June Kamel collected $14,000 in advance fees and completed 60% of the work related to these fees. What adjusting entry is required by Kamel's firm at the end of June? LT (3 Points) Debit Unearned Service Revenue 8,400; Credit Service Revenue 8,400 Debit Service Revenue 5,600; Credit Unearned Service Revenue 5,600 Debit Cash 14,000; Credit Service Revenue 14,000 Debit Unearned Service Revenue 5600; Credit Service Revenue 5,600