C) a unified European currency did not come about until the creation of the Euro -- instituted as an "invisible" currency in 1999 for trading but not available for common use (i.e., as a physical currency) until 2002.
One of the main reasons why labor unions found it difficult to organize industrial workers in the late nineteenth century was because there was no culture of organizing workers into larger entities. For this reason, the workers didn't really believe they would be able to achieve if they organize. The workers were also very scared they could be easily replaced by other workers and would therefore lose their jobs.
C i believe i might be wrong
Immigrants felt racial tension when moving to the United States after world war 2 because many Americans thought that they were taking their jobs. the United States then put forth the alien and sedition acts to help relieve this tension by deporting and limiting the amount of people coming in from other countries. Kentucky and Virginia resolutions was a protest against these acts. it proves that some of America was in disagreement
