The Characteristics of Data Model are as follows except one. Select one:
a. The very first data model could be flat data-
models, where all the data used are to be kept in
the same plane.
b. Data models define how the logical structure
of a database is modelled
Data models define how data is disconnected
to each other and how they are processed and
stored inside the system
d Data Models are fundamental entities to
introduce abstraction in a DBMS