Question: ( D ) A conceptual, high - level description of the structure of a database is contained in: A O a system catalog. B a

(D) A conceptual, high-level description of the structure of a database is contained in:
A O a system catalog.
B a data dictionary.
C O a schema.
D an entity-relationship (ER) model.
(D) A conceptual, high-level description of the structure of a database

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