E. **SaaS (Software as a Service)** SaaS is a cloud service that provides fully managed software applications delivered over the internet. With SaaS, users can access and use software applications without the need to worry about infrastructure, maintenance, or management. The service provider manages everything, including servers, storage, updates, security, and scalability. Users simply access the software via a web browser or app, making it a fully managed solution from the user's perspective.

SaaS stands out as the fully managed service in this group. The cloud provider handles all aspects of the application, allowing users to focus on using the software functionality without managing the underlying infrastructure or software itself.

Confused as to what it's referring to. The customer, the CSP? So I asked Gemini. What do you guys think? D. Serverless compute Here's why: IaaS (Infrastructure as a Service): In IaaS, you manage the underlying infrastructure like servers, storage, and networking. GPU in the cloud: This is a service that provides access to GPUs (graphical processing units) in the cloud, but you would still be responsible for managing the underlying infrastructure. IoT (Internet of Things): IoT services can include various functionalities, but management responsibilities can vary depending on the provider. SaaS (Software as a Service): While the software itself is managed by the provider, you might still have some configuration options. Serverless compute, on the other hand, takes care of managing the servers entirely. You simply deploy your code and the cloud provider handles provisioning, scaling, and maintenance of the servers. This allows you to focus on your application logic without worrying about server infrastructure.