You have to write a C# app that will consist of three classes other than the driver class.

Class 1: Student

Properties: SID, LastName, FirstName, Address,

Method: displayStudentinfo

Class 2: Course

Properties: CID, Credit, Title, Faculty

Method: displayCourseinfo

Class 3: Grade

Instant variable: sid, cid, gradepoint

Properties: LetterGrade

Method: getGradepoint

Method: setGradepoint

Note: You may add other methods and instant variables to implement the required functionalities of the app.

Driver class:

1. Create an array of 10 objects of Student class
2. Create an array of 10 objects of Couse class
3. Create an array of 10 objects of Grade class
4. Write a do-while loop that will display the following menu and get an option from the user:
   1. Enter Student info
   2. Enter Course info
   3. Enter Grade info
   4. Display Student info by ID
   5. Display Course info by ID
   6. Display Student Transcript
   7. List of students sorted by their GPA
   8. Exit the app