In C# please Write a class DegreeWorks. It will be used to tell you which courses you need to complete in order to graduate. It must have: A private ArrayList (Java) or List (C#) of strings called required A private ArrayList (Java) or List (C#) of strings called completed. A private method called cs() which adds "CSE1321", "CSE1321L", "CSE1322","CSE1322L" and "CS3305" to the required ArrayList/List. A private method called it() which adds "CSE1321", "CSE1321L", and "IT1114" to the required ArrayList/List. An overloaded constructor that takes in a major (string) and an ArrayList/List of courses you have passed. If the passed in major is CS called the cs() method. If it's IT, call the it() method. Set the completed ArrayList/List to the values passed in to this constructor. A method leftToTake() which takes in no parameters and returns void. It will print out any courses the student has not completed, but is required to take. In your driver class: Create a method called classesTaken which takes in no parameters and returns an ArrayList/List of strings. Create a new ArrayList/List of strings. Add to the arraylist CSE1321 and CSE1321L. Return the collection. In your main method Call classesTaken, store the resulting ArrayList/List in a variable. Instantiate a DegreeWorks object for a CS student with the classes taken from the above method. Call leftToTake, so it prints out the missing classes. Sample Output: Must take:CSE1322 Must take:CSE1322L Must take:CS3305