Consider the following relations: Student Roll No. Student Name 1 Raj 2 Rohit 3 Raj Roll No Course Marks 1 Math 80 1 English 70 2 Math 75 3 English 80 2 Physics 65 3 Math 80 Consider the following SQL query.SELECT S. Student_Name, sum (P.Marks)FROM Student S, Performance PWHERE S.Roll_No = P.Roll_NoGROUP BY S.Student_NameThe number of rows that will be returned by the SQL query is ________.

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