The last one. During the crusades, different foods and such were found, different goods were unlocked to europe, and different mathematic and scientific ideas were brought back as well.
I'm gonna have to say A. I'm not sure though. Hope this helps! Have a good day!
Labor unions were formed to push for "a. better working conditions" "d. eight-hour workdays" and "<span>f. demand for higher wages" since the Industrial Revolution had led to great mistreatment of workers. </span>
The first president was George Washington
His rise to power was the result of many factors: the impact of the Depression, the weaknesses of Weimar democracy and the strengths of the Nazi party.