Class Responsibility calculate FinalGrade CourseCalculator Category Description The main class of our application. Interacts with the user to get input and ensure that it is valid Calculates the final grade for the course The parent class of MultiGrade and SingleGrade Stores data for grade items which uses multiple grades. These grades can be averaged together (and are equally weighted) to generate a grade for the course. (For example, quizzes or assignments) MultiGrade Calculate a grade for the grade item SingleGrade Return a grade for the grade item Stores data for grade items which consist of a single grade. (For example, participation or project marks) QUESTION 3: FINDING A HOME FOR YOUR GRADES (1 MARK) Now it's time to consider what might go in the Category class. Assume that the Category class will hold several instance variables, including: name: The name of the grade category (such as "Quiz") weight: The weight of the grade category, as a value between 0 and 1.0. grade: The value of your grades in this grade category, as a value between 0 and 4.3 It would be useful as well to add a variable to hold the value for each of your raw grades (the result of an individual assessment, such as a single quiz) to each category of grade items. What is the issue with defining this at the Category level