Which of the following best characterizes the gilded age

The answer is: C.- In the deep south, a sharp increase in immigration brought a boom in construction and industry.

Explanation:

The so-called Gilded Age, "Golden Age", in the history of the United States of America, is the period after the War of Secession and Reconstruction, from the 1870s to the 1890s, when the country met a unprecedented economic, industrial and demographic expansion.

The answer is: C.- In the deep south, a sharp increase in immigration brought a boom in construction and industry.