Why were the trail like the, oregon trail and santa fe trail important to america' s westward expansion

The Santa Fe Trail was America's first commercial highway. ... Before its demise due to the completion of the Santa Fe railroad, the Santa Fe Trail served as a thoroughfare for countless traders, pioneers and America's military, and it played a crucial role in America's westward expansion.

It is also known as the Oregon-California Trail. This path allowed early pioneers to migrate into western United States. ... The trail was the only way migrants could travel by land. They used mules and oxen to pull their covered wagons.

this is an outline for the decisions that frankie is going to make

opportunity cost

willingness to buy

price or quality

of course, there could be many economic strategies that should be considered important while making decision. opportunity cost is the foremost significant factor while considering any economic option. when you buy something, you should know how much you are forgoing for this product. indeed, you could buy something different with this measure if you changed your mind. willingness to buy shows how much surplus you are earning while making a decision. it is important because it shows you buy what you want or you buy because you have only limited amount of money. the price or quality can be considered as a general economic option that we are applying while buying something. when you buy something, price or quality could be one of the options. indeed, they define the characteristics of the product.    

mark brainliest!

the correct answer on edgen is:

(c.) prevent the spread of communism.

i just took the test.