Which of the following contributed to the increased economic and military power of the Sumerians?

Cause

A. a standing army of many trained soldiers

B. The formation of alliances with other city-states

C. a series of highly strategic army leaders

D. the development of bronze to make weapons

Effect
increased economic and military power

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modern american cars are not available due to trade restrictions

answer to ur question is college b

citizens were able to charge more for their goods and services

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