1. In entering the room, you trigger the question. Try it: go into the room, do NOT answer, but use the cross to exit conversation. then go a few steps back - then go forward again, see? Approaching triggers.

2. You "answer" by touching the correct teleporter.

3. You get teleported into the 2nd room, regardless which teleporter option you choose. Same for the other rooms. But your choice determines if you pass or fail.

And the symbols on the pads are the Raanaar number symbols from the starting room, remember the Code on the wall? The rules? They have the same symbols. Only number 13 is not on the wall. why? Because the wall crumbled EXACTLY there, burying the number 13.

Larians are cruel, hm? I loved that trap!