What is metadata primarily used for in data management?

Metadata is primarily used for content description of data resources. It serves as an essential tool in data management by providing descriptive information that helps users understand the content, context, quality, and structure of the data being managed. By including technical details, such as the type of data, its purpose, and how it relates to other data, metadata enables easier data discovery, management, and interoperability.

While understanding the sources and origins of data is important, which is what option B focuses on, it is just one facet of the broader purpose of metadata. In contrast, metadata can include details about data processing, data structures, and the relationships among various data sets, promoting better data governance and use. Thus, the most comprehensive and accurate characterization of metadata's primary role is related to content description, as it encompasses a wider array of information that supports effective data management practices.