What is git sparse-checkout and when would you use it?

A A way to clone a repository without downloading any files, downloading them on-demand later B A feature that allows checking out only a subset of files/directories from a large repository, reducing disk usage and working directory size — useful for large monorepos where you only need a specific component C A checkout strategy that skips binary files and only checks out text files D A mode that checks out only files modified in the last N commits to speed up builds