A persistent collection of data items that form relations among each other is called a:

A.
Schema

B.
Database management system (DBMS)

C.
Database

D.
Data description language (DDL)

Explanation:
For a database to be viable, the data items must be stored on nonvolatile media and be protected
from unauthorized modification. For answer a, a DBMS provides access to the items in the database
and maintains the information in the database. *The Data description language (DDL) provides the
means to define the database and schema is the description of the database.