The heart of any database is a well designed set of ______________. Select the most suitable answer to fill in the blank.QueriesReportsLayoutsTablesSQL

The most suitable answer to fill in the blank is Tables.

Explanation

In a database, tables serve as the fundamental building blocks where data is stored in a structured format. Each table consists of rows and columns, with each column representing a specific attribute of the data, and each row representing a single record. Queries and reports are tools to interact with and extract information from the tables, while layouts refer to how the data is presented, and SQL is a language used to manipulate and query the data in those tables. Therefore, "tables" is the correct choice as it directly relates to the core structure of a database.