Expert System contains _____________.

A. Database

B. Modelbase

C. Knowledgebase

D. All of the above

Answer: Option D

Solution(By Examveda Team)

Expert System contains Database, Modelbase and Knowledgebase. Typically, an expert system incorporates a knowledge base containing accumulated experience and an inference or rules engine -- a set of rules for applying the knowledge base to each particular situation that is described to the program.