Which of the Following Statements About the Conceptual Schema of a Database

Multiple Choice

Which of the following statements about the conceptual schema of a database is true?

A) It is for the entire database and is at the conceptual level of the database architecture.
B) It is a subset of the internal schema that is required by a particular application program or users.
C) It describes how the internal subschema is implemented physically.
D) It is a subset of the database that describes how the database is implemented.