Without having the passage, I can only help you to find it on your own. While you read the entire passage, what detail are you reading that supports that national parks are in need of coordinated administration from professionals of the preserves? You have only stated 'detail', so I am assuming they are only asking for one; therefore, you need to look for some type of factual statement to support the sentence.
C) The bells change from controlled to panicked
A. Point of view - Point of view is the position from which you write about your subject.
Hope this helps!!
Sentence three is the correct sentence. All of the others have some grammatical error in them. In the first, "felled" is incorrect and not a word. It also says "walk boots" instead of the correct verbal adjective "walking boots." In the second, "weren't" is not usually considered very academic and "tight" should be in the adverb form "tightly." Number four is wrong because it used "walked boots" instead of of "walking boots" and "tight" instead of "tightly." "Fallen" is incorrect in number 4, because it should have been "had fallen" if one was going to use the verb "fallen."
