how to assign c# class object to a list object after convert?

Question

I have this c# object list and i have to asign a class object to list or how to convert

 

var studentClassObj= new Student

{

name = "appus",

revision = "1",

};

var teacherClassobj= new Teacher

{

name = "ram",

revision = "13",

students = student

};

var officestaf= new OfficeStaff

{

officestaffList= //officestaffList is a list object how to assign "teacherClassobj" object here?

}