Hint: The gilded era represents the nineteenth century [ 1870 -1900 ] in the history of The United States of America. The foundation of this age was laid by the rapid growth of the industrial revolution in the USA which led to better economic situations and more job opportunities with better pay grades than that of the European market. This change increased the number of immigrants on the American soil which created an imbalance in the social circle and became the initial cause of discrimination and slavery in the land.
Complete step by step answer:
During the gilded era, America went from a barren land with a bunch of immigrants to the valley of unprecedented growth in industrial and technological aspects. The foundation of this change began with the industrial revolution in Europe which later transferred to other continents. When the job opportunities with a higher pay grade emerged in the USA as many private companies of the large-scale production era started. These changes-initiated construction of railroads which became 6the major mode of transportation in the country flowed by international exports. Urbanization of the land was also becoming a major aspect of the gilded era and around 40% of the Americans lived in major cities in the nation. As the number of industries increased, demands for better and disciplined work with a standard paycheck became a need for the workers. This created arguments and eventually unions within the workers who fought for their needs. On a more sinister side of this era, corruption and greed became a public secret as corrupt industrialists, bankers, and politicians seemed to enjoy extraordinary wealth at the expense of the large working class. In fact, it was wealthy tycoons, not politicians, who inconspicuously held the most political power during the Gilded Age. The gilded era was followed by a large group of immigrants coming to the land from African nations from the 1940s through the 1970s. This transfer is known as the White Flight. During this Migration, around six million Black people from the South moved northward to avoid persecution, leaving their rural homes behind for urban opportunities. The Great Migration occurred between 1916 and 1970 soon after the industrial boom occurred in the gilded era.
So, the correct answer is Option B.
Note: The term ‘Gilded Age’ was introduced by a well-known writer named Mark Twain in collaboration with to inform people about the era of stupendous materialism and plain political corruption in U.S. history through the book titled ‘The Gilded Age’ written in 1873. The era also witnessed the Third-Party System, called Gilded Age politics, which included very tight contests between Republicans and Democrats (with occasional political campaigns by farmers and trade unions by third parties), civil service reform, organized movements that enlisted many women fighting for prohibition and women's suffrage, the strengthening of big-city machines, and the change from party to modern interest.