All the classes in the above class diagram are entity classes. Add at least four boundary and four control classes to the class diagram. Redraw the class diagram- your diagram can include all classes or only those classes that are updated (20 points). Develop a sequence diagram for "Register" use case based on the use case narrative provided above. Update/revise the class diagram you created for question 2 so it is consistent with your sequence diagram. (20 points). Develop a state machine diagram for an object of "section" class (20 points). Implement this state machine diagram in the class diagram using state pattern (20 points).