Final answer:
In the 2000 presidential election, Al Gore won the popular vote by approximately 540,000 votes but lost the Electoral College to George W. Bush, who became the president after winning Florida by 537 votes.
Step-by-step explanation:
In the presidential election of 2000, none of the given options exactly describe what occurred. To clarify, George W. Bush did not win the popular vote; rather, Democrat Al Gore received roughly 540,000 more ballots nationally. Ralph Nader did not win Florida; Bush won Florida by a very narrow margin after a contentious legal battle and a halted recount, with the final difference being around 537 votes, not Nader's victory. Additionally, Al Gore did not win the Electoral College; George W. Bush attained a majority with 271 electoral votes to Gore’s 266, securing the presidency. Concerning Ralph Nader, while he did not win Florida or receive 550,000 more votes nationally than Al Gore, he did receive approximately 3 percent of the popular vote nationally, which is accurate. Lastly, it's noteworthy that this election prompted discussions on Electoral College reform due to the discrepancy between the popular vote and the Electoral College outcome.