Welcome to the ODK forum, @Adilson_Bauhofer! We're glad you're here. When you get a chance, please introduce yourself on this forum thread. I'd also encourage you to add an image as your avatar because it helps build community!
I would use a calculate
type question to determine if the person is eligible, and then use the results of that calculation to show the correct note about their eligibility.
Here's an example: bauhofer_example.xlsx (10.1 KB)