Austere geometric style, reliant on primary colors (or blacks and grays), and in its early forms an adherence to horizontal--vertical axes.

just finished this it is b. centrifugal force

a agree i agree becuase it is very importnat for example it can tlel you about your past for exmaple   the first culture was the semerians which people are sitll tryignt o uncover there secrets the wall is just anohter treasure that has thousnads of secrets in it to be uncovered