Rise | Confirmation of solution by supervisor

Hey everyone, I'm currently stuck with a problem. I create content in Rise for Engineers. In the first part of the course they receive tasks (as cad files) that they have to solve in a CAD programme. Afterwards they have to pass a quiz in Rise in order to move on. So far so good :) Now the tricky part. After the quiz they have to discuss their solution with their respective supervisor. The supervisor has to approve the solution and after that they will get the solution files in Rise. So how can I manage this approval by the supervisor in Rise? I thought about a disclaimer box where they have to tick the box in order to confirm the approval.. but they could just tick it and get the solution..would be a bit too easy. Do you have any ideas on how to solve something like that :) Thanks and best regards, jens