How do I set triggers on a drag-and-drop to force it to be correct
My course has a demo mode, where I want to force quiz questions to show the correct answers automatically. This is easy to do with multiple-choice and T/F questions, because I can define a trigger to change the state of the correct answer button to "Selected". But what do I set for triggers for a drag-and-drop? I have tried all sorts of combinations of setting slide objects to "Drop correct" states, but, no matter what I do, I get an error when I submit the quiz about not having answered the question.
My quiz is a free-form drag-and-drop, with a hot-spot for each drop target. There are two objects to drag to the correct location, and a third object that does not have a target.