Which of the Following Is Not Part of a "Final

Multiple Choice

Which of the following is not part of a "final accuracy check" when creating relational tables from an REA diagram?

A) Every attribute in every table is single-valued (i.e. ,each table is a flat file) .
B) Every event must be linked to at least one resource.
C) Every table must have a primary key.
D) Other non-key attributes in each table must be either a fact about the thing designated by the primary key or foreign keys used to link that table to another table.