Which is correct about the relationship between the U.S. population and steel consumption in the early 1900s?
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Steel consumption increased slightly, while the population increased drastically during the early 1900s.
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Both the population and steel consumption increased drastically during the early 1900s.
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The population increased slightly, while steel consumption increased drastically in the early 1900s.
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Both the population and steel consumption increased slightly during the early 1900s.