I have 4 drag objects (images) and 4 drop zones (the drop zones are same size, one sitting on top of the other). The question has no submit button, feedback is issued immediately (via Show>Target Popup group).
Now, the response I want is: drag object 2 and 4 are both correct options, but only ONE object needs to be dragged for the correct result, NOT both. For example, the 4 objects are different fire extinguishers, you choose ‘one’ extinguisher to put out the fire, but either of the two extinguishers would be appropriate to use.
In contrast, drag object 1 and 3 are both incorrect options, and only ONE object needs to be dragged for the question to be incorrect.
I cannot seem to get the desired result and would appreciate your help.