They came to trade fur, they also were looking for new land and a good route to the Pacific, and sought to convert American Indians. :)
The answer is C. both the above
The movement of voters between each political party could either damage or guaranteed the representative chance for victory. And the period before the general election is perfect for the candidates to persuade other voters because moderate voters tend to be predominantly involved in this period. After entering the primary, more extreme and loyalist voters will start to show up.