Why did the railroad companies hire immigrant workers from China and Ireland, as well as African-Americans in Mexican-Americans

A Workers were scarce
B The work was hard and dangerous
C The people were willing to work for low wages
D All of the above
E None of the above

1 answer

D All of the above

The railroad companies hired immigrant workers from China and Ireland, as well as African-Americans and Mexican-Americans, because workers were scarce, the work was hard and dangerous, and the people were willing to work for low wages.