Identify which type of public cloud computing is being used in each scenario. PaaSCorbin uses Amazon's Lambda service to test, update, and run applications without having to manage underlying servers.IaaSChelle signs into the Salesforce Web site so she can check on the status of a customer's order using her company's CRM application.SaaSCecily uses Amazon's EC$2$ service to host her Web server on a virtual machine, the VPC service to manage network access to her Web server, and the RDS service to host her Web site's database. Youre meeting with your organizations Advisory Board to discuss an upcoming migration of some of your data centers