Consider the following tables (relations).Primary keys in the tables a – McqOptions

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1.	Consider the following tables (relations).Primary keys in the tables are shown using underline. Now, consider the following query:SELECT S.Name, Sum (P.Marks)FROM Students S, Performance PWHERE S.Roll-No = P.Roll-NoGROUP BY S.NameThe number of rows returned by the above query is
A.	0
B.	1
C.	2
D.	3
Answer» D. 3

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