A correct option is an option (b), i.e., the logical design. Normalization is part of the logical design.
What is Normalization in a database?
It is known as normalizing to specify and define tables, keys, columns, and relationships to build a useful database. The successful design of a database includes the normalization. Following the initial exercise of determining the data objects that should be stored in the relational database, their relationships, and the necessary tables and columns for each table, database normalization is often a process of refinement.
What is a logical design in the database?
The process of converting (or mapping) a conceptual application domain schema into a schema for the data model underlying a specific DBMS, such as the relational or object-oriented data model, is known as logical database design.
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