What does git stash pop differ from git stash apply?

A They are identical commands with different names for backward compatibility B stash pop applies the stash and removes the stash entry from the list; stash apply applies the stash but keeps it in the stash list C stash apply applies the stash changes and removes the stash entry; stash pop applies without removing D stash pop applies only the most recent stash; stash apply can apply any stash by index