They encouraged people to settle because they were looking for an economic opportunity so not A and they mostly thought they were going to get rich from gold, so not B so I would say C
Industrialization created new jobs which helped to cause Urbanization, transportation and communication allowed goods to move to new markets, steamboat moved goods and people quickly, manufacturing, raw materials, and Bessemer steel process improved productivity.
1. C--the automation of jobs: as technology increased manufacturing jobs were filled by technology leaving other jobs to be created. The service sector was the result of that innovation.
2. B--prosecute members of the Communist Party: The Smith Act made threats to overthrow the government illegal. Since communist is based on the overthrow of a government, this act justified the search and investigation of communists.
Answer:
The Northern Colonies relied on free systems of labor, in which people were not subjected to any restrictions to their personal liberty. This made the labor market more dynamic.
The Colonies of the Tidewater region, specially Virgnia, relied on indentured servants: a labor system that consisted in bringing European settlers to work for free for a few years, until they could pay off their trip expenses.
Finally, the Southern Colonies, specially South Carolina and Georgia, relied on the slavery of African Americans, which was not a new labor system at all, but that underwent some changes in the colonial period, related to the scale and commercialization of the enslaved labor.
Https://www.globalsecurity.org/military/ops/vietnam2-opposition.htm
Hope this helps