Cleaning Services Emmas Tidy Team has been hired to clean the common areas of a condominium complex (Peaceful Living). Peaceful Living will pay Emmas quarterly, at a rate of $15,000 per quarter, after services for that quarter have been rendered. Emmas has asked you whether it is appropriate to record revenue monthly as services are rendered or only at the end of each quarterly period. Respond to Emmas, citing guidance from the Codification