A key feature of Platform as a Service (PaaS) is:

Choosing enhanced application lifecycle management as a key feature of Platform as a Service (PaaS) highlights the critical role that PaaS plays in facilitating the development, deployment, and maintenance of applications. PaaS environments provide developers with tools and services that streamline various stages of the application lifecycle, such as building, testing, deploying, monitoring, and updating applications.

With PaaS, developers can focus on writing code and managing the application itself rather than dealing with the complexities of the underlying infrastructure, which is abstracted away. This environment allows for rapid development through pre-built application components and automated processes, leading to efficiently managed application updates and easier collaboration among teams.

The other options reflect aspects that are not the primary focus of PaaS. Full control over the underlying hardware pertains more to Infrastructure as a Service (IaaS), while the provision of network infrastructure is a characteristic of both IaaS and traditional on-premises environments. Lastly, hosted applications served to customers more accurately describe Software as a Service (SaaS), rather than the specific offerings and advantages that come with PaaS.