Yesss???? What do you mean? :(
Answer:
Hi, you didn't put the answer options, but I can help you by showing you that the central idea in “two ways of looking at a river” is the statement that the more we know something, the more we change our opinion about it .
Explanation:
"Two ways of looking at a river" is a work by Mark Twain and describes how he changed his mind about the Mississippi River as he got to know it more and more. In the text Twain shows how he saw the river as something beautiful, poetic , somewhat mystical and transcendent, as something supernatural and ideological. However, after becoming a steamboat pilot and knowing the river in a professional way he started to change his mind, he started to see the river as something normal and natural, very different from the vision I had before.
The correct answer is B. doing research for information about a topic
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A, C, and D are definitely not part of prewriting because they assume you've already written something, and you just need to go through that text. B means that you still haven't started writing - you are just trying to find details and information about your topic so that you can later write about it.