History help asap Which factors led to the development of the four river-valley civilizations of Mesopotamia, Egypt, the Indus Valley, and China?

Select all correct answers.

A: a nearby river

B: the building of villages and cities

C: people doing different jobs

D: the construction of places of worship

E: The ability to communicate widely through writing

a peace conference held after the surrender of japan

an international conference held near the end of world war ii

a meeting of the victorious nations after the defeat of germany

a summit meeting between the united states and the soviet union

what the first or next guy says

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