The Significance of the 1892 World's Columbian Exposition Was

The significance of the 1892 World's Columbian Exposition was

A) That it was the first time the world came together for a massive public educational event.
B) That it showcased fifty years of industrial development and technological progress.
C) That the nation's leaders met in the District of Columbia to seek solutions to difficult industrial working conditions.
D) That women were among the many exhibitors.
E) None of these choices