Sometimes it feels like no fun to get an unconditional, but one that comes this early in the game should be pretty easy. Let's do it real time:
(A) seems OK - defer (or, confirm)
(B) is suspicious in that it lists almost everyone. After a moment's though, it's clear that it leaves only T for S, and we know that if T goes with S, we'll need W there too.
(C) is clearly impossible. Z and Y must go together, and Y can't go with X.
(D) is obviously wrong--Z must go with Y.
(E) is a bit tricky, but could easily have been something you inferred during the Big Pause. Since X can't go with Y nor Z, that only leaves two others that can go with it. However, if we place both with X, then we have only two left, and those two are Z and Y, and they must go together.
So, (A) it is.