Consider an Entity-relationship from entity set E1 to entity set E2.If E1 and E2 particpate totally in R and cardinality of E1 is greater that the cardinality of E2.Which of the following is true about R?

A Every entity in E1 is associated with exactly one entity in E2.

B Some entity in E1 is associated with more than one entity E2

C Every entity in E2 is associated with exactly one entity in E1

D Every entity E2 is associated with at most one entity in E1

Solution

Correct Answer: Option A

Solution

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