How did the early West cause a cultural transformation in the United States? (5 points)

a
Mexicans and Americans were forced to live together after the Mexican War, resulting in a mix of cultures in the western United States

b
Because of the gold rush, many cultures came to the West and interacted with each other, resulting in cultural awareness for the United States.

c
The Transcontinental Railroad in the West allowed visits to foreign countries, and people were able to experience other cultures for the first time.

d
The U.S. purchased the Oregon Territory from Britain and Mexico, and those citizens still lived there after the purchase, mixing their culture with American culture there.