What type of choice can only be used by the table and column that they are created against?

Local choices are specific to the table and column for which they are created and cannot be used elsewhere. This means that if a local choice is defined for a specific column, its options are tied directly to that column within that particular table. This type of choice is particularly useful for ensuring data consistency and relevance, as the options presented are tailored for the specific context of the table's use case.

In contrast, standard choices and general option sets allow for broader use across different tables and columns, making them more flexible but potentially less targeted. Special choices, while not a standard term commonly recognized in Power Platform terminology, also imply variations that differ from local choices in scope or applicability. Hence, local choices provide a defined and contained set of options that maintain relevance and integrity within their specified table and column, making them highly useful for managing data integrity in applications built on the Power Platform.