The correct answer is: Artists from Italy focused on capturing the ideal form, while artists from Northern Europe focused on capturing details.
The condition of westward expansion created a market for the jeans Levi Strauss invented in the 1850's are the harsh weather and the physical work environment.
Westward expansion was becoming popular in the United States during the mid-1850's. Levi Strauss was a German immigrant who moved to American during the 1840s.
I am not 100% sure but I think A because that is a federal thing that he did.
The last one!!
The National Aeronautics and Space Administration (NASA)