Database is referred to as 'back end', identify what the interactive program is termed as?

Front-end

The correct answer is Option (4) - Front-end.

In order to provide security and consistency of data, database is not directly accessible to users. Any addition or retrieval of information from database is done by user-friendly programs. Database is thus rightly referred to as ‘back-end’ while the interactive program, that includes user interface, is termed as ‘front-end’ of a database application.