Drag and drop - 4 pictures only two answers possible
I am working on the following...
I have 4 pictures of items that should be taped with either Tape A or Type B.
Picture 1 = Tape A
Picture 2= Tape B
Picture 3=Tape A
Picture 4=Tape B
I show the 4 pictures and I now need to have only two answers (Tape A and Tape B) that can be reused for drag-and-drop.
If I use 4 answers ( 2x Tape A and 2x Tape B) I have the problem that the user must drag the specific Tape A option to the specific picture, otherwise this will be considered wrong, although the answer is right...
How can I fix this problem?