If a Relationship Exists Among Three or More Entities,then

Multiple Choice

If a relationship exists among three or more entities,then:

A) recursive relationships must be established through the use of recursive foreign keys
B) a separate relation with a primary key that is the composite of the primary keys of each of the participating entities is created
C) separate relations are established for each class and for each of the subclasses
D) use the primary key of relation A as a foreign key in relations B and C