Which statement best describes the purpose of the Sitecore Container Registry (SCR)?

The Sitecore Container Registry (SCR) is the official source of Sitecore Docker images for all roles and topologies. The SCR provides base container images for Sitecore environments for both production and development purposes. You can use these images to build your own custom images that include your code and configuration. The SCR also provides images for modules and tools that are compatible with Sitecore. The SCR is hosted at scr.sitecore.com and requires a Sitecore account to access. References:

Containers in Sitecore development1

Sitecore image reference2

Sitecore, Docker, and Continuous Integration3

Sitecore/docker-images: Build docker images for Sitecore4