<span>D) whether slavery would spread across the United States
Hope this helps!</span>
<span>D. Monopolies shut out competition
Monopolies are prevented because of the Sherman Antitrust Act of 1890, which regulates and takes apart monopolies, as well as protecting small business owners from collapsing and consumers from high prices.
Hope this helps</span>
I believe the correct answer is A
A. They wanted to make sure Kanas became pro-slave