That would be c I believe
Answer: Not all people were ready or excepting of this culture because they had just came out of slavery. The idea of a culturally diverse community was very new to people of this time.
The transcontinental railroad transformed the west because it made the idea of manifest destiny so much easier to achieve. The railroads also gave access to many trade spots, which in result connected them all, making the economy of America BOOM.
They lived in what was normal in those times. The Islamic traders dealt with a wide variety of goods, including sugar, salt, textiles, and spices. The way that they lived back then allowed the traders to travel all the way from Europe to China. Also, they were most likely wealthy and powerful.