The Columbian Exchange greatly affected almost every society on earth, bringing destructive diseases that depopulated many cultures, and also circulating a wide variety of new crops and livestock that, in the long term, increased rather than diminished the world human population.
Eugene Debs was the man who once ran for the presidency of the United states while being in prison. The correct option among all the options given in the question is the third option. He was also an American Union leader and the founder of the Industrial workers of the world. He ran for the presidency of the United States 5 times.
