I believe its C it makes the most sense to me
Answer:
The Articles of Confederation (1781) was the original Constitution before being replaced in 1789. The Articles of Confederation favored power to the states. The Articles of Confederation was all created by the 13 States soon after the American Revolution. Obviously, the Articles did not turn out successful. For example, it did not have any sort of national court or executive branch. Each state had there own form of currency. If a amendment wanted to be passed, ALL 13 colonies had to agree
According to the statement above: "These explorers ventured into the Louisiana Territory in 1803 and became the first U.S. citizens to navigate their way westward to the Pacific Ocean."
The answer is: Louisiana Purchase.
Hope this helps.
A. gathering of facts, negotiation, self-purification, and direct action