Which of the Following Statements Is True About a "Rule

Multiple Choice

Which of the following statements is true about a "rule" in expert systems?

A) It groups related records together on the basis of having similar values for attributes.
B) It makes sure that each table contains only attributes that are related to the entity.
C) It allows multiple dimensions to be added to a traditional two-dimensional table.
D) It is typically expressed using an "if-then" format.
E) It allows you to make hypothetical changes to the data associated with a problem and observe how these changes influence the results.