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For the Following Entity-Relationship Diagram, What Could the Primary Key

Question 54

Multiple Choice

For the following entity-relationship diagram, what could the primary key be in the Grade entity? For the following entity-relationship diagram, what could the primary key be in the Grade entity? A) Primary key in Student entity B) Primary key in Course entity C) Its own primary key. D) Primary key made up of the primary keys in Student entity and Course entity E) It doesn't need a primary key.


A) Primary key in Student entity
B) Primary key in Course entity
C) Its own primary key.
D) Primary key made up of the primary keys in Student entity and Course entity
E) It doesn't need a primary key.

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