Which of these is the best example of a “red button” directive?

This is a red button directive because it prescribes an arbitrary implementation to a problem that’s not even fully articulated. It’s hard for implementers (designers, developers, testers) to bring the best of what they have to offer to a directive like this. A better approach is to describe a testable narrative about what the user is trying to accomplish (with problem scenarios, propositions and user stories).