Which of the sentences below best expresses the essential information in the highlighted sentence in paragraph 6? Incorrect choices change the meaning in important ways or leave out essential information. A. We see nature as precisely balanced because nature is unchanging. B. A precise balance of nature is not possible because of the complexity of natural systems. C. Our sense that nature is precisely balanced results from the illusion that it is unchanging. D. Because nature is precisely balanced, complex systems do not seem to change.