When transforming an E-R diagram into normalized relations, the identifier of the entity type becomes:
A) the primary key of the corresponding relation.
B) the foreign key in the corresponding relation.
C) a nonkey attribute in the corresponding relation.
D) a secondary key in the corresponding relation.
E) a homonym in the corresponding relation.
A
Explanation: A) This primary key uniquely identifies an entity instance (row) in the relation.
CL
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