Choose the closest paraphrased version for the sentence or italicized part.
It would be a shallow kind of optimism to assume that the introduction of the art of inventing has been an immediate and unmixed blessing to mankind.（）
A、
It would be a shallow kind of optimism to believe that the introduction of the art of inventing has directly benefited only mankind.
B、
It would be a shallow kind of optimism to believe that the introduction of the art of inventing has benefited mankind directly.
C、
It would be a shallow kind of optimism to think that the introduction of the art of inventing has blessed mankind immediately and blessed only mankind.
D、
It would be a shallow kind of optimism to believe that the introduction of the art of inventing has benefited mankind immediately and brought them only benefit.
【正确答案】：D
【题目解析】：
认为发明创新事业可以毫无例外地直接造福人类，是一种肤浅的乐观主义表现。选自下册第十五课 Edison:Inventor of Invention。