What is the relationship between the foreign key and primary key? Each correct answer represents a complete solution. (Choose all that apply.)
A. A foreign key constraint works in conjunction with a primary key constraint to enforce referential integrity among related entities.
B. A foreign key ties attribute(s) of an entity to the primary key of another entity, for the purpose of creating a dependency.
C. There is no relationship between a primary key and a foreign key.
D. A foreign key and a primary key create a link between two entities.
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