单选题

　　[阅读理解]The withdrawal of Nevada‘s Yucca Mountain as a potential nuclear waste repository has reopened the debate over how and where to dispose of spent nuclear fuel and high-level nuclear waste. In an article in the July 10 issue of Science， University of Michigan geologist Rodney Ewing and Princeton University nuclear physicist Frank von Hippel argue that， although federal agencies should set standards and issue licenses for the approval of nuclear facilities， local communities and states should have the final approval on the siting of these facilities. The authors propose the development of multiple sites that would service the regions where nuclear reactors are located.

　　Which of the following words can best substitute the word “withdrawal” in the first paragraph

　　A.Retirement.

　　B.Canceling.

　　C.Replaced.

　　D.Disposal.