Which prompted European imperialism in the late 19th century

European imperialism was prompted in part by the Europeans belief that they were better than other nationalities, an attitude that was prompted by the popular theory of the time as? Social Darwinism. The resources of central Africa that would have been most attractive to the 19th century European imperialist was its...?

Explanation:

a.

congress passed laws allowing for free passage between states.

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.