On December 15, 2019, a company receives an onder from a customer for services to be performed on December 28, 2019. Due to a backlog of orders, the company does not perform the services until January 3, 2020. The customer pays for the services on January 6, 2020. The revenue principle requires the revenue to be recorded by the company on OA January 6, 2020. B. December 28, 2019 C. January 3, 2020. OD. December 15, 2019