• A) Specify the following queries in SQL on the database schema of Figure 1.2. a. Retrieve the name of each course and the instructor who taught that course. If an instructor taught a course more than one time, remove the redundant information. b. For each section of those courses offered by CS department, retrieve the course number, semester, year, and number of students who took the section. c. For each student who took more than 2 sections, retrieve the name, student number, major of the student and the number of sections taken by the student.