Answer:
Economic expansion demanded cheap labor, access to or control of markets to sell or buy products, and natural resources such as precious metals and land; governments have met these demands by hook (tribute) or by crook (plunder).
Explanation:
The obstacles that were faced by the Central and Union Pacific region workers are harsh weather conditions. Thus, option C is correct.
The building of railroad network in the Central and Union Pacific region is followed with great difficulties and challenges.
<h3>What are challenges faced by the workers</h3>
The railroad was constructed at the terrain region. It is hard to deal with the conditions. The poor workers laid on mountains in the pacific region, and risk their lives with granite and explosives.
The difficulty faced by the workers of Union and Central Pacific region is the harsh weather conditions. Thus, option C is correct.
Learn more about Central Pacific, here:
brainly.com/question/7382089