The correct answer is option A.
One of the main issues taken by Al Gore during his presidential run for president of the United States of America in 2000 was what he called 'Environmental Activism'.
Along with the slogans: 'Leadership for the New Millennium and Prosperity for America's Families', the Gore campaign made the Environment and many related issues a centerpiece of his campaign.
The correct answer is A) the environment.
The issue that was seen as the centerpiece of candidate Al Gore's campaign in the 2000 presidential election was the environment.
Former United States vice president Al Gore was the Democratic candidate for the US presidency of 2000. His rival was George W. Bush, who resulted in victorious in the controversial election. As a candidate during his political campaign, Al Gore showed a deep concern about the environment and the effects of global warming. Indeed, years later, he sponsored a documentary called "An Inconvenient Truth," which exposes many issues that affect the environment.
