41.tWhat is Artificial Intelligence (AI) and what does it represent?
(A)tA complex computer program； the culmination of human ingenuity in computer science and cognitive psychology.
(B)tA simple system； the end of research and innovation in computer science and cognitive psychology.
(C)tA sophisticated technology； the beginning of research and innovation in computer science and cognitive psychology.
(D)tA basic tool； the end of human ingenuity in computer science and cognitive psychology.
(E)tA primitive concept； the beginning of human ingenuity in computer science and cognitive psychology.