System Analysis and Project Management question: Please answer and explain the 4 question below related to the diagram for learning expierence.

Consider the following classes. Student Student Number -Student Name -Cumulative GPA -Course Grades +ComputeGPA -ComputeGradePoints GradStudent UndergraduateDeg +ComputeGPA0 +CheckDean'sList0 UndergradStudent +CheckDean'sList In the above diagram, UndergradStudent and GradStudent are sub classes of Student. CheckDean'sList is a method that determines whether a student will be honored as a Dean's List student. The criteria for this determination are different for graduate and undergraduate students. The symbol -' stands for private and +"stands for public. In the above diagram, 1) Which attributes are inherited by UndergradStudent? GradStudent? Student? 2) Which methods are inherited by UndergradStudent? GradStudent? Student:? 3) Which element in the above diagram is an example of polymorphism? 4) What is the interface for student