The answer will be written according to the C programming language only. It will not be written according to C ++ Problem DefinitionUntil today, we have learned to write separate programs that perform some file operations on sequential-access files. These transactions are to open a new sequential file, to write a formatted record to thesequential file, to read all the records of the file and display it on the screen, or to scan and display therecords that have a specific feature in the file. We ran those programs separately to perform theseoperations. Now we will write a single program that runs all these operations by calling them as a functionwith the help of a choice list as menu.Assume that the codes of the courses taken by students enrolled in Computer Engineering Department atOSTİM Technical University and their passing grades will be recorded in a file at the end of each semester.The program,shall write the computer engineering students records for the spring semester of 2020-2021 in asequential-access file with the name as ceng2021s.txt,shall read all of the records from the file and list them on the screen,shall, by entering school number from the keyboard, list the course codes of a desired studentand display the passing grades taken from these courses,shall, by entering the course code from the keyboard, list students school numbers taking thatcourse, the grades of the students and the grade average of the course on the screen,shall, by entering school number of a student from the keyboard, write the courses and coursegrades taken by that student in a newly created separate text file.Before the preparation of this program, examine the Textbook Fig.11.15. The homework program will besimilar to this example. The format of the information to be written to the ceng2021s.txt file and thesequential-access file sample shall be as follows. studentNumber (int), courseCode (char array [8]), finalGrade (float).200201078CENG10489.75200201999CENG10477.50200201078МАТH10288.25200201777PHYS10283.00200201777CENG10477.50200201999МАТH10275.25As seen in the example above, a student can have grades from more than one course in the file andсоmore than one student can take the same course.The program will work with the sequential file ceng2021s.txt.The program will perform the following operations using an option menu. The program will run until0(zero) value is entered. Files shall be created readable form (text mode, not in binary form).1-Creating the student file from scratch2-Adding records to the student file3-Listing all students records on the screen4-By entering one of the students' school number, list the courses codes that are taken by that studentand passing grades of that student from those courses.5-By entering one of the course codes, listing the students school numbers who are taking that course,their passing grades and the average grade of that course code on the screen.6-By entering a school number from the keyboard, create a new sequential-access text file with theextension txt and writing the students' school number, the courses taken and passing grades of thestudent.0-Termination of the program

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Declare an integer variable to store user input for options from 0 to 6.
 
Declare variables to hold…