The expansion of railroads directly led to economic growth in the us because more people were able to commute to and from their workplace to their homes. Since some work opportunities before railroads were seen as too far away from home, once the railroads were created and trains were running on the tracks, the lengthy distances were shortened and people were able to look for jobs in places where they were more abundant, therefore boosting the economy.
Interracial harmony saw among Muslims in Saudi Arabia. Malcolm X African-American Muslim who battled for racial uniformity after his. He was a Muslim who crusaded for racial uniformity after his family was assaulted. He trusted Hajj to be the best case of racial agreement.
The correct options are C and D.
When the Europeans started moving to America, the relationship between the two started out on a friendly note but as time goes on, due to the attitude of the Europeans land use, fights broke out between them which lead to the native american been dispossess of their land. The diseases brought by the Europeans also affected the natives and killed many of them.