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Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. The seeds of pioneer species are usually carried by the wind to fertile sites, where they reproduce very efficiently. B. Pioneer species are successful invaders because they produce lots of seeds that are dispersed effectively. C. Pioneer species produce their largest numbers of propagules during the earliest stages of their colonization. D. Pioneer species reproduce very quickly and efficiently because they produce very large number of seeds.