In the period after 1900, the role of the state in the economy varied, with many states adopting policies to control or manage their economies. Its supposed to be an essay and I don't know how to answer. Help???

Native americans, the aboriginals of australia, sub-saharan african cultures

This is called visual imagery. it is a memorization technique wherein an idea or a term is associated with an image, this in remembering ideas, especially as humans are very visual learners. this is also why visual aids a lot for memory retention.

The answer is c. i think hope this ! can you me with my question ?