In data modeling, what is primarily described by the term "metadata"?

The term "metadata" refers to data that provides information about other data. It serves to enhance understanding and facilitate the usage of that data by describing various aspects such as its structure, meaning, context, and relationships with other data. This makes option B the correct choice, as it captures the essence of metadata — essentially, a comprehensive description that helps users understand the data's purpose and how to effectively utilize it.

The other options do not align with the core concept of metadata. For instance, while a method of storing data refers to the technical practices or systems in which data is held, it does not provide insight into the data itself. Similarly, an unsorted collection of data indicates a lack of organization and structure, which is contrary to the organized nature of metadata. Lastly, data encryption pertains to protecting data from unauthorized access, which is unrelated to the descriptive function of metadata. Understanding this distinction is crucial for effective data modeling and usage.