Which Of The Following Is True About Representing A Weak Entity With The Relational Model?

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Which Of The Following Is True About Representing A Weak Entity With The Relational Model?

A) If the weak entity is existence-dependent, the key of the parent must be part of the key of the weak entity. B) If the strong entity has a minimum cardinality of 1, the key of the weak entity must be part of the strong entity. C) If the weak entity is ID-dependent, the key of the weak entity must be part of the key of the parent entity. D) If the weak entity is ID-dependent, the key of the parent entity must be part of the key of the weak entity. E) If the parent entity is existence-dependent, then the minimum cardinality of the weak entity is zero.
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D) If the weak entity is ID-dependent, the key of the parent entity must be part of the key of the weak entity.
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