The data set that is supporting an application utilizes commas to separate records. Which of the following describes the data set?

Relational databases use structured tables with predefined schemas and relationships between tables, which is more complex than simple comma-separated records.

A flat file is a simple database where all data is contained in a single table, with records typically separated by delimiters such as commas or tabs. This structure means there are no structural relationships between records, fitting the description of comma-separated data.

NoSQL databases are non-relational and typically use flexible schemas like key-value pairs, documents, or graphs, which differs from a comma-separated record structure.

A spreadsheet is an application for organizing and analyzing data in rows and columns, but the underlying data set itself, when stored as comma-separated values, is best described as a flat file.