Answer:
higher, lower
Explanation:
In simple words, labor union refers to the groups that are formed by the labor force of the organisation due to past exploitation done by the employers. These unions works in a structured way to protect he rights of he labor workers and are usually found in big organisations. Thus, their main focus relies that labor gets paid the maximum amount as be for their job done.
However labor wages are a major expenditures for many labor intensive organisations and increasing the labor wages would result in loss of profits to the employers, resulting in conflicts between labor and employer.
Economic and political factors, the U.S. was influenced to practice imperialism, particularly during the late 19th and early 20th centuries.
I believe the correct answer is D. Land in the West was often very inexpensive because not only was the voyage from Europe to the new world dangerous, but the land voyage to the West from the East was risky as well
Hope this helps