In an E-R diagram, a line between two entities represents a(n)________.
A)attribute
B)identifier
C)cardinality
D)relationship

Name: In an E-R diagram, a line between two entities represents a(n)________. A)attribute B)identifier C)cardinality D)relationship
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A line between two entities in an E-R diagram represents a relationship between them. Cardinality represents the degree of the relationship (e.g. one-to-one, one-to-many), while attributes and identifiers are depicted within the entities.

In an E-R Diagram, a Line Between Two Entities Represents