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.
Because it would be easier to pass without the southern states before they would be restored to the union.
<span>Well mostly, people identify more strongly with regional and ethnic groups than with the nation...perhaps I'd go with the option A.</span>