Answer:
Explanation facility
Step-by-step explanation:
Expert systems leverage the ability of artifical intelligence as they are computer programs which have the ability of learning over time from a particular expert on a certain knowledge base or field in other to be reproduce or simulate the responses or capability of the expert based on the same subject. The expert system is composed of components such as the knowledge base, inference engine, knowledge and learning module, user interface and the Explanation facility . What the explanation facility typically does is explains to the user why and how a particular recommendation is made or how it reached a certain conclusion