Help needed with buttons sets and triggers/variables

I might do it this way....

My initial thinking before testing your slides, was what if they select something from row one, variable could be triggered to true.  But, if they then deselect it their choice and do not make a new choice the variable is still true and it's a lot of triggers to create to "make true if this and if false this".  However, in your example once something from row 1 is selected, it's selected, you can change your mind and pick something else in that row, but row 1 is done.  So the variable route would work.

My solution (attached) is to use states instead.  I added an extra button that is off slide, it essentially works as a T/F trigger, but going back to my statement above, I wanted to make sure that as long as anything in row 1 is selected - the button beside it is marked "true" (state is changed).  But I also wanted to make sure that if they deselected anything from the first row that it is also captured.

So for each button of screen the state changes to "complete" (I like to use my own state names) if any of the items in the corresponding row are selected.  If all of them are deselected, then when the person hits next a layer will come up showing they missed something and to go back and check.

My grade 10 computer teacher permanently stuck in my mind programming for all the "what ifs".  If it was a t/f question, he would answer maybe.  ;)