The sentence should be placed after sentence 4. The following sentence is a conclusion, as it sums everything up.
explain the reason, and simply beg for the extension like your life depends on it
Will that's funny the right answer is.A.
Answer: The first passage of the story is about the history of formation of the Yellowstone National Park, this includes the information why it is significant, which means that author appeals to readers' emotions, describing the park with great interest and passion. The second passage has no mood, just contains some facts and statistics which would have a less appealing factor to the reader.
Explanation: