Can someone please help me​

What kind of contact did christopher columbus and native americans initially have?

How many people died in battle during world war 1? a. 8-9 mill b. 3-4 mill c. 1 mill d. more than 10 mill

Who were the “rough riders”? a. cuban revolutionaries who battled the spanish for independence b. a volunteer cavalry unit in the spanish-american war c. spanish generals in cuba who mistreated the civilian population d. newspaper owners who influenced public opinion by exaggerating the truth