An instructor has been keeping all his grade books in Excel for years. He has a separate spreadsheet for every course. In the spreadsheet he tracks the scores for every assignment and test and then assigns term grades based on the overall averages. Whenever a former student contacts him requesting a letter of recommendation or whenever the administration requests information concerning a student in a previous term he has to open and search several spreadsheets to get the student’s information. a. What are some of the advantages a database would have over the current system for this instructor? b. What would be some of the major topics for the database? c. Write a statement of work for the preceding database.