Allowing only two options in my scale question

Hello, I have question on choice set as attached;

choiceset.xls.xlsx (9.8 KB)

I would wish to have only one option selected per intervention and should only have two options such that when one intervention is selected to be worst, then the other one should be selected to be best and vise versa. So maximum of two responses only. Please help

@paul_maleya, you may still need to provide a bit more detail about your attached XLSForm. The questions do not appear to have any choices included. Could you share just one sample question along with its choices and a brief explanation of what you are trying to achieve? This will help the community better understand your issue and provide more accurate support.