Consider the set of relations given 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 =Sriram AND Courses.Course_number = Grades.Course_number AND Grades.Grade = A (Which of the following sets is computed by the above query?)