What does it mean when an entity has a minimum cardinality of zero?
A) The entity has a mandatory role in the relationship.
B) The entity is not required in the relationship.
C) The entity should not be in the relationship as an attribute.
D) The entity must be listed with all zeros in the data fields.

Question

Quizplus · Accepted Answer

A minimum cardinality of zero for an entity in a relationship means that it is not required to be present in the relationship. The entity may be optional and may or may not participate in the relationship.

What Does It Mean When an Entity Has a Minimum