Neither end is a lineman, because their shoulders are not even approaching approximately parallel to B's goal line. Illegal formation, simultaneous with the snap, five yards.
I fail to see the case for illegal motion or illegal shift. At a minimum, all pairs of feet are set for a second.
This assumes there is no verbal conduct to make B believe the snap is not imminent. But if there is--and it looks like B's right tailback might have had that in mind--the foul is unsportsmanlike conduct, no play, fifteen yards.
I hope the latter didn't happen, because if it did, it marks the second time in two months that a crew from Texas has let this go, resulting in a crap play that gains national prominence and causes the rest of us problems when we shut similar garbage down like we're supposed to.