I am working on a registration form which has a set of 3 radio buttons for class selections

Radio_set1: Class 1

                    Class 2

                    Class 3

I would like to disable Class 1, Class 2 and Class 3 individually when certain requirements are met.

I do not wish to disable the whole Radio_set1.

May I know if there is a way to do this?

Thank you very much.