Answer:
A. Explore the area covered by the Louisiana Purchase
Explanation:
The goals of the Corps of Discovery, whose cadre would be raised primarily from the U.S. military, was to explore the Louisiana Purchase, and establish trade and U.S. sovereignty over the native peoples along the Missouri River.
<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.
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