Which had the biggest impact on economic growth in Sumerian city-states? A)writing literature B)building ziggurats C)trading between city-states D)protecting the city-state from invaders

C

Explanation:

Writing isn't a economic thing. Building ziggurats costed money. You need a army which costs money to protect a city state from invaders which leaves c

not to sure sdi, strategic defense initiative

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions