The correct answer is: C. infrastructure as a service.
Amazon Web Services (AWS) is a subsidiary of Amazon that provides on-demand cloud computing platforms and APIs to individuals, companies, and governments, on a metered pay-as-you-go basis. These cloud computing web services provide a variety of basic abstract technical infrastructure and distributed computing building blocks and tools. One of these services is Amazon Elastic Compute Cloud (EC2), which allows users to have at their disposal a virtual cluster of computers, available all the time, through the Internet. AWS offers a broad set of global compute, storage, database, analytics, application, and deployment services that help organizations move faster, lower IT costs, and scale applications.
Infrastructure as a service (IaaS) is a type of cloud computing service that provides access to computing resources such as servers, storage, and networking over the Internet. IaaS is a good option for businesses that need to scale their IT resources quickly and easily, without having to make a large upfront investment in hardware and software.
Platform as a service (PaaS) is a type of cloud computing service that provides a platform for developing, testing, and deploying applications. PaaS is a good option for businesses that need to develop and deploy applications quickly and easily, without having to worry about managing the underlying infrastructure.
Software as a service (SaaS) is a type of cloud computing service that provides access to software applications over the Internet. SaaS is a good option for businesses that need to use software applications that are not available on-premises, or that need to access software applications from anywhere in the world.
Back-end as a service (BaaS) is a type of cloud computing service that provides access to back-end services such as databases, storage, and networking. BaaS is a good option for businesses that need to develop and deploy applications that require access to back-end services.