Question: For a binary relationship set R between entity sets A and B, the Mapping Cardinality is ONE TO ONE if

Answer:

MCQ: For a binary relationship set R between entity sets A and B, the Mapping Cardinality is ONE TO ONE if

A. An Entity A is associated with any number (zero or more)of entities in B, An entity in B however, can be associated with at most one entity in A.
B. An entity in A is associated with at most one entity in B, and an entity in B is associated with at most one entity in A
C. an Entity A is associated with at most one entity in B, An entity in B however, can be associated with any number zero or more of entities in A
D. . An entity in A is associated with any number zero or more of entities in B, and an entity in B is associated with any number zero or more of entities in A.

Correct Answer: A. An Entity A is associated with any number (zero or more)of entities in B, An entity in B however, can be associated with at most one entity in A.