Which of the following best describes the Software as a Service model?
A service where customers can deploy and manage their own applications while the provider manages the infrastructure, operating systems, and middleware components.
A service that provides virtual machines, storage, and networking resources over the internet, allowing customers to run any software, including operating systems and applications.
An online service that allows individuals to write and send electronic letters via traditional postal systems.
A service where the cloud provider supplies and manages the software application, infrastructure, and middleware, while the customer only provides data and uses the software.