I do believe that it was in 1834 not sure though
The answer is b .. hopes this helps :)
The correct answer is north.
This was a period of rapid industrialization which was common in the northern parts of United States of America. It's called gilded because like gilded things, it seemed as if things were going great but that was just a thin layer that was covering a plethora of various social and economic issues. The south didn't experience this very much because they were rather traditionally oriented in their business endeavors and manufacture so they experience the problems of the gilded age as much as the northern parts did.<span />
The correct answer here would be the option C.
The United States since the Industrial Revolution have been an industrial and manufacturing society. But, over the years their industry shifted from manufacturing to services, as now instead of factories the large number of people is employed in the service industry. The shift happened among other things, the cheaper labor in different countries where the factory owners have decided to set up shop.