WesWorld

Hmm. Of the three, variant B looks to be the most promising. I think a little more definition of the fuselage spine might be in order though.

I agree that B looks the best, A is probably tricky and C seems unlikely.

The wing area on B looks pretty massive though, lots of room for fuel etc. but it just seems too big and it reminds me of an ogival delta in planform (a pure delta is unlikely, even the Vulcan had to adopt a kinked leading edge).
Those issues though could just the lack of scale on these initial planning drawings.