Which best completes the diagram?
communism imperialism liberalism nationalism

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."

the first forms of writing came from them in the form of pictographs around 3100 bc.