Answer:
c. economic success was available to anyone who worked hard.
Explanation:
In the late nineteenth-century (the year subsequent to the civil war 1865 to 1900)
The american society didn't not have a caste or royal society with nobles or lord like English, French or Germans did.
They were all under the impression that the american dream could be ahcieve with hard work besides, pretty much all the people living in the US during that time were inmigrants or sons of inmigrants thus, there wans't an stablished order all was here for the taken.