Single select option

Guys, I’m working on a project and I need help. I’m using the repeat function and I want the already selected name out of the incoming one.
Eg, Say 10 teachers in my choices list and I need specific data on each staff and after any loop the name which has already been selected should be out of the list.

Welcome to the community, @solotheking! So do you need to use the details from the repeat group to the next question?

So this is what I want to do. For the 10 teachers after the first loop or repeat I want the name selected to be out of the select_one option for the 2nd loop and so on and only 1 teacher in the last repeat.