(a) - Identify some informal queries and update operations that you would expect to apply to the database shown in Figure 1.2 (2 points) (b) - Specify all the relationships ( 5 points) (c) - Give some additional views that may be needed by other user groups for the database shown in Figure 1.2. (3 points) (d) - Think of different users for the database shown in Figure 1.2. What types of applications would each user need? To which user category would each belong, and what type of interface would each need? (5 points) STUDENT COURSF EERTInN PREREQUISITE Figure 1.2 A database that stores student and course information