Hmm.. now that I think of it, you have a point. I always did like the indoctrination theory and maybe those three choices actually represent different arms of reaper control. You know what, if I ever decide to go on with my ME1 Femshep playthrough I'll consider it. I mean it does look somewhat suspicious that the shooting of a magical tube would instantaneously represent the destruction of the greatest force in the galaxy. Maybe it represent's Shepard's will to fight?