For the first question, that depends on the context as "countless" can be a flowery term. Having the universe inside you is Low 2-C alone, as the gap between universes is apparently infinite (though I've seen a finite gap that is so insurmountably large that you're better off sticking with infinity). Imo, being countless isn't going to do much without context. If it's, like, countless universes, it can essentially be 2-B, unless if it's like infinite, in which case it's 2-A since apparently seeing it as a small ball implies whoever it is actually sees countless 4D as something with a semblance of size.