The correcting entry is:
C. Debit Cash $540
Service Revenue $280
Credit Accounts Receivable $820
Explanation:
Service revenue is report generated regarding the sales provided to its customers by a business. Generally the revenue will be billed. The revenue can be recognized even it is not billed.
Service Revenues are always mentioned in the income statement maintained by the company. Balance due is the amount owe by the customer. Revenues are considered as the subdivision of retained earnings. Usually some of the business events were not recorded, so the entries adjustment is made often.