You had/have a course on H2S that has a question on the final exam that the answer is marked as wrong no matter what you select. I brought this to your attention and someone responded and said "this is the correct answer" and showed the correct answer. I had already selected that answer many times, a colleague also had the same issue. I went back in after your employee said it was fixed but its not. To my knowledge, its still messed up and this has been almost a year ago. Fix your mess!!