In the first question of my survey, respondents should choose the department under which they are working, which means that could be either Operations/Programs of Support as indicated in this image:
Currently, if someone chooses YES and YES or No and NO the survey can be sent, even though it is incomplete. How is it possible to put a condition that if the answers are YES+YES or No+NO, the survey stops and an error message like “Please only select one department” appears?