Consider the set of relations shown below and the SQL query that follo

1.	Consider the set of relations shown below and the SQL query that follows:
A.	Names of students who have got an A grade in all courses taught by Korth
B.	Names of students who have got an A grade in all courses
C.	Names of students who have got an A grade in at least one of the courses taught by Korth
D.	None of the above
Answer» D. None of the above

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Consider the set of relations shown below and the SQL query that follows:

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