Question

9 What is Primary Key? *
2 points
A A primary key is a maximal set of
O attributes in a table that uniquely
identifies tuples in that table.
A primary key is a minimal set of
O attributes in a table that uniquely
identifies tuples in that table.
O A primary key is a unique identifier.
O Both B&C​

Answer 1

Answer:

I think both a&b

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