Software as a Service (SaaS) - A cloud service where the provider manages the application and underlying infrastructure, but may not offer the level of customization or control needed for specific regulatory compliance.

Platform as a Service (PaaS) - A cloud service that provides a managed environment for deploying and scaling applications, offering built-in compliance and security features suitable for regulatory standards.

Infrastructure as a Service (IaaS) - A cloud service offering virtualized computing resources over the internet, requiring the customer to manage the operating system, middleware, and applications, which may increase operational overhead.

None of the above - The scenario described does not fit any of the provided cloud service types.