Given your terminology without dispute, and then ignoring all debates about what ordinary human language refers to, yes 3-4. I think we have enough knowledge at this point to reject internalism out of hand, and if I were going to dispute your terminology then I would say that 2 is also internalism, just weaker internalism, and that the internalism/externalism debate shouldn't ought to be said to have things to do with realism, see e.g. "An Introduction to Contemporary Metaethics" in which externalist theories are still classified as realistic; I think a lot of what feels like a naively necessary quality of cognitivism/realism is actually particular kinds of non-naturalism in the standard schema. E.g. I would consider "a fact such that knowledge of it is inherently motivating to every possible mind" to be non-reductionist because it's a kind of Mind Projection Fallacy of the quality of motivating-ness that facts have to us, but that has nothing to do with whether our own morals have the property of cognitivism/realism. If I were further going to dispute terminology, I would replace a lot of what you would call "facts" with what I would call "validities" and try to ground them in values every time they involved any kind of preference or betterness or choice, since the laws of physics contain no little < or > signs. But on your scheme, yes 3-4.