What is specialization?

working for no wages

studying or working in one particular area

being in a higher social class than others

working for wages based on the time worked

C) The movement overlooked the problems of migrant farmers and nonunion workers.

Explanation:

The main problem for progressivism was that the main part of the population that was beneffited by it was the white males with low and medium incomes, for them the progressive movement was very helpful and imporve the quality of their life in a very consisten way, but for all other people was difficult and were overlooked, like the poblems of migrant farmers or non union workers.