Which of the following does not properly describe the schema of a database?

A.
Describes database structure in a formal language

B.
Schema is supported by the database management system

C.
Contains data that is held within the database

D.
Schema data is usually held within the data dictionary

Explanation:
The schema of a database system is its structure described in a formal language supported by the database management system (DBMS). a relational database, the schema defines the tables, the fields, relationships, views, indexes,packages, procedures, functions, queues, triggers, types, sequences, materialized views, synonyms, database links, directories, Java, XML schemas, and other elements.Schemas are generally stored in a data dictionary.