You have a C# code snippet with 2 classes, one composed by elements of the other.
Something like
public class Student
{
public string Name {get;set;}
}
public class Supervisor
{
public string name {get;set;}
public List<Student> {get;set;}
}
And a markup code snippet, with 2 repeaters imbricated + a ObjectDataSource retrieving a list of Supervisors,
the top level repeater “rptSupervisors” is bound using ObjectDataSourceID to the ObjectDataSource, andthe
inside one “rptStudents” is not bound yet.
We understand that we need a list of supervisors and sublists of their relative students.

A.
bind rptStudents with the list of current item inSupervisorsList using the ItemDataBound event of the
rptStudents repeater

B.
bind rptStudents with the list of current item inSupervisorsList using the ItemCommand event of the
rptSupervisor repeater

C.
databinding directly the rptStudents in the page load or something dummy like that (don’t remember
exactly)

D.
another dummy solution involving a “supervisors have all the same students” situation

Explanation:
right answer not available