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Suppose a database has an entity called Animals and another called Mammals. What relationship would you expect there to be between them? 1 . There

Suppose a database has an entity called Animals and another called Mammals.

What relationship would you expect there to be between them?

$1 .$ There is a one $-$ to $-$ one relationship between them.

$2 .$ There is a many $-$ to $-$ many relationship between them.

$3 .$ Animals is the supertype, and Mammals is the subtype.

$4 .$ Mammals is the supertype, and Animals is the subtype.

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