Multiple Choice
A one-to-one unary relationship _____.
A) involves a single entity type
B) involves two entity types
C) allows an occurrence of one entity type to be associated with several occurrences of another entity type
D) allows an occurrence of one entity type to be associated with several occurrences of another entity type and vice versa
E) allows an occurrence of one entity type to be associated with several occurrences of the same entity type
Correct Answer:
Verified
Correct Answer:
Verified
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