triggers

Ugh, I've forgotten where to look to figure out how to set triggers. I have a quiz question with 4 answers, two of which are correct. I've got a trigger set to change the state of a hidden shape if the 2 correct answers are selected and a trigger set to show another shape if either of the 2 incorrect answers are selected, but can't get the trigger figured out to show the "incorrect" shape if the user selects one of the two correct answers but not both.  Can someone direct me??? please? THANKS

6 Replies