Expert systems are comprised of a knowledge base comprising modeled human experience and which of the following?

A.
Inference engine

B.
Statistical models

C.
Neural networks

D.
Roles

Explanation:
A: The expert system uses a knowledge base (a collection of all the data, or knowledge, on a particular matter) and a set of algorithms or rules that infer new facts from knowledge and incoming data. The knowledge base could be the human experience that is available in an organization. Because the system reacts to a set of rules, if the rules are faulty, the response will also be faulty. Also, because human decision is removed from the point of action, if an error were to occur, the reaction time from a human would be longer. Pages 253254.