In Relativity, a "Choice" is the object used to store the specific, predefined values for single-choice and multiple-choice fields. For example, a "Responsiveness" field would have choices like "Responsive" and "Not Responsive." These choices are created and managed as separate objects within a workspace. When a user codes a document, they are selecting one of these choice objects, and a link between the document and the selected choice is stored in the database. Layouts display these choices, but the choices themselves are the underlying objects.

B. Layouts are the web forms or user interfaces where coding fields and their available choices are displayed for user interaction.

C. Views are customizable lists that determine which fields (columns) are shown for a set of documents, not the storage for coding values.

D. Indexes (e.g., dtSearch, Analytics) are data structures that make document content and metadata searchable; they do not store the primary coding values.

Relativity Documentation, "Fields, choices, and layouts," Version: RelativityOne. This page states, "Choices are the predetermined values that are applied to single and multiple choice list fields."

Relativity Documentation, "Relativity objects," Version: RelativityOne. The documentation lists "Choice" as a distinct workspace object, defining it as a value for a single or multiple choice field.