Getting Drag and Drop items to appear in random order

I recently created the attached exercise for an economics course. The answers are given and need to be dragged to the appropriate box. In creating the exercise I assumed that I could shuffle the order the answers appear on the exercise. Unfortunately, many of the unused answers are at the end of the list I created in the Form Menu. If I am unable to mix the order, I do not mind changing the order they appear, but I could not see a way to move any of the questions up or down in the Forms Menu. Only the Delete Choice and Anchor Choice were highlighted. How could I either shuffle the answers or change the order?