The correct answer is they blazed trails through the Rocky Mountains and other difficult terrain.
Mountain men were people who lived in the wild of Rocky Mountains from 1810 to 1880. These men played an important role in <em>creating roads</em> so people from the East could travel to the West, helping the fur companies improve their trade. Many mountain men worked as a <em>“free trappers”</em>(by their own), but a lot of them were hired by fur companies.
The correct answer is copy the president's views
Paying money and lobbying with the family is kind of illegal so it's not that. Joining the party doesn't mean much if you don't see eye to eye. Since the president chooses his own cabinet, it is necessary for you to support his views in order to join his government.
Farming was difficult due to limited amount of good soil and cropland. Hope this helps.:)
