The correct answer is: "Congress passed the Sherman Antitrust Act"
The Sherman Antitrust Act was a federal antitrust law enacted in the US in 1890, during Harrison's presidency.
It attempted to regulate competition among enterprises, as during the industralization era many companies started to reach agreements with their potential competitors and to function as monopolies, harming consumers and competitiveness in the national economy and enriching themselves by fixing high prices for their products.
The invention of the Bessemer Process.
<span>They controlled access to the Eastern Mediterranean sea
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They used the technology in conquests to expand the empire.