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100 POINTS PLEASE HELP ASAP!!!!

What helped Chicago grow into a major city in the 1800s?

A. the boom in canal building and railroad building

B. its incorporation of other cities' hinterlands

C. the development of wealth-producing service industries

D. its location near large oil and coal deposits

User Sam Xu
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1 Answer

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D. Its location near large oil and coal deposits
User Syre
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