Which of the following lessons can be learned about people from the history of imperialism?
select one:
a. people rationalize things effectively to get what they want
b. people are selfless
c. people are content with their lots incorrect
d. any of the above can be learned from imperialism.

"a. People rationalize things effectively to get what they want" is a lesson that can be learned about people from the history of imperialism, since much of the justification of the colonization of Africa by the Europeans was made by insisting that the Africans were "better off" under their command structure.