Why had transportation made so few improvements?

Pls quickly! which of the following statements about spanish plantations is not accurate? a. spanish plantation screw sugarcane for export to spain. b. the spanish had a little concern for the lives of the indians who worked on the plantations. c. spanish presentation grew a wide variety of crops and sent the produce to many different european countries. d. to replace the native americans our dying off the spanish important african slaves.

Why did president wilson want the us to provide leadership at the end of wwi

In what is known as the great migration, large numbers of african americans moved from the rural south to northern cities, beginning in the early twentieth century. what motivated this large-scale movement?