Answer:
C. Provided goods or services to a customer.
Step-by-step explanation:
Book keeping is the act of recording financial transactions of a business on a day to day basis. The purpose is to keep concise and up-to-date record of the financial transactions.
Book keeping helps in analyzing finances, assist in planning and aids better decision making.
When revenue is recorded relating to a customer's transaction, it means that the company involved has provided goods or services to a customer. The recorded transaction is a proof of services provided and evidence that the transaction passed through the company's records.