Your project manager has tasked you to implement the following requirements:

$$ Create a StudentRecord class, with the following properties and method:

$-$ StudentID: Unique identifier for each student.

$-$ Name: Student's name.

$-$ CourseGrades: List of CourseGrade objects where each object contains a course name and its corresponding grade.

$-$ UpdateGrade$($string course, double newGrade$)$: Updates the grade for a specific course.

$$ Define a RecordsManager class with the following properties and methods:

$-$ RecordsFilePath: The path to the file storing academic records.

$-$ StudentRecords: A list of StudentRecord instances.

$-$ LoadRecords$()$: Reads the records from a file using StreamReader.

$-$ SaveRecords$()$: Writes the records to a file using StreamWriter.

$-$ FindRecord$($string studentID$)$: Retrieves a student's record by ID$.$

$-$ UpdateRecord$($string studentID, string course, double newGrade$)$: Updates a student's grade for a specific course.

Building on the requirements outlined in question $3\mathrm{.}1,$ you are now required to implement and simulate the system:

$-$ Instantiate the RecordsManager and initialize it with a file path.

$-$ Populate the RecordsManager with initial data for $10$ students and save it to the file.

$-$ Read the records back from the file to confirm they are stored correctly.

$-$ Update some of the student records and demonstrate how changes are logged.