An organization wants to lease the resources they need for their customized servers from a cloud provider on a pay-as-you-go basis, instead of paying one time for hardware. Which service model…

Hybrid cloud is a deployment model combining on-premises and cloud resources, not a service model for leasing individual server resources.

Software as a Service (SaaS) delivers complete software applications over the internet and does not provide access to customizable server infrastructure.

Infrastructure as a Service (IaaS) delivers virtualized infrastructure resources - including compute, storage, and networking - on a rental or pay-as-you-go model. Organizations can configure and manage their own servers without owning the underlying hardware, which directly matches the requirement to lease customized server resources instead of making a one-time hardware purchase.

Platform as a Service (PaaS) provides a managed development and runtime environment, abstracting away server management rather than exposing customizable server resources.