Write The C++ Code To Implement Four Classes According To The Following Requirements:

se private: string ID string title int credits public: void printCourseInfo() Il displays the Course's three private attributes Class Constructor: a constructor that is used to fill the data of the Course's three private attributes. Class CourseSection as a derived class of the base class Course with the following description: CourseSection private: int sectionSize I/Number of students enrolled in the section Student *roster // will be used to store a list of Student objects representing the l/students enrolled in the section. No need for this list to be sorted Student* *sortedNames //to store a list of pointers to the Student objects in roster. Student* *sortedAges //to store a list of pointers to the Student objects in roster. Student* *sortedGPAs //to store a list of pointers to the Student objects in roster. void sortNames() Ilarrange the pointers in sortedNames to access the students' I/records in an alphabetical order of their name. void sortAges() Ilarrange the pointers in sortedAges to access the students' I/records in an ascending order of their age. void sortGPAs() Ilarrange the pointers in sorted GPAs to access the students' I/records in a descending order of their gpa. public: void fillrosterInfo(ifstream *rf) /reads the info of all students in the section from the text file through its I/file stream pointer rf by calling readStudentInfo(ifstream* sf). //Reads the info in the o