I think the answer is A, not for sure.
Answer:
stating that it is important that people control their own fate
A common practice was to pay ridicilously small wages to workers themselves and pay even less to children and women who were working at factories. Another thing that was done was to either import foreign workers who would have to work for even less, or to move production to companies overseas where they would set up a distribution and where workers themselves would also have to work for very small amounts of money. This increased their profit margins.
I believe the answer is: It delayed or extended nationalist struggles.
The nationalist struggles come after different nations started to fully embodied nationalist movement, which make them tend to incline to prove their nation's superiority over another nations. This type of thinking often lead to conflicts among these european nations.