The election of 1800 was a turning point in American history because "It was the first time that political power shifted."
This is evident because the incumbent President was John Adams of the Federalist, who lost the election to the Republican Thomas Jefferson.
During this period, the Federalists controlled the Military, Executive, and Congress.
The Federalist party could easily upturn the decision of Congress in their favor, but they didn't and let the Constitution be upheld.
Hence, in this case, the correct answer is option B. "It was the first time that political power shifted."
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