Q86

Consider the set of relations shown below and the SQL query that follows. Students: (Roll_number, Name, Date_of_birth) Courses: (Course_number, Course_name, Instructor) Grades: (Roll_number, Course_number, Grade) Select distinct Name from Students, Courses, Grades where Students.Roll_number=Grades.Roll_number and Courses.Instructor = 'Korth' and Courses.Course_number = Grades.Course_number and Grades.Grade = 'A' Which of the following sets is computed by the above query?