The answer is a
relational database.
A data model in database management system consists of rules
that define how the DB organizes data. Today, a relational database is widely
used. It is a collection of data items organized as a set of formally described
tables from which data can be accessed in many different ways.
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Answer:
S
Explanation:
The index operator will address individual characters in the string.
They think of it as a spreadsheet