________ in an E-R diagram refer to the least number of entities required in a relationship.
A) One-to-one relationships
B) Primary keys
C) Foreign keys
D) Minimum cardinalities

Question

Quizplus · Accepted Answer

Minimum cardinalities in an E-R diagram specify the least number of entities required in a relationship. They can be either one (one-to-one), many (one-to-many), or none (optional) for each participating entity. Minimum cardinalities are important in database design as they determine the structure of the database and the relationships between entities.

________ in an E-R Diagram Refer to the Least Number