Design a class named Person and its two subclasses named Student and Employee.

A Person has a name, address, phone number, and email address.

A Student has a class status (freshman, sophomore, junior, or senior). Define the status as an integer constant (1, 2, 3, 4).

An Employee has an office, salary, and date hired.

NOTE: You don't need to define the methods, just identify the instance variables required in each of the three separate classes.