The correct answer is: The House of Representatives broke a tie between Thomas Jefferson and Aaron Burr.
In the 1800 presidential election, Thomas Jefferson and Aaron Burr, both from the Democratic-Republican Party, received the same number of electoral votes, leading to a tie. The situation was resolved when the House of Representatives voted to elect Thomas Jefferson as president after several ballots. This election highlighted the inadequacies in the electoral process, which eventually led to the 12th Amendment being ratified, establishing separate electoral votes for president and vice president.