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r Amy is planning to write a paper about railroads in America. To guide her research, she has come up with the question, "How have railroads helped America grow?" Her teacher tells her that this question is too broad, so Amy wants to narrow it down. Which choice is the BEST one Amy can use to guide her research? A) How many railroads go through Chicago, Illinois? B) What is the longest railroad in the United States? C) What are the main ways railroads are used in the United States? D) Which countries were the first ones to use railroads in a major way?

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dgabby655

Answer:

C.

Explanation:

Options A and B are too specific. The answer would be short and definite, not lengthy enough to write a paper on.

Option D involves other countries. The paper is supposed to be about railroads in America.  

The only option left is C. This is correct because it has potential for a paper and isn't off-topic or too specific.

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