I'm thinking it was on September 1783?
The answer is C. (International Sovereignty).
Hope this helped!
For this question it be A
Option B is the right answer that the Navajo sent messages to prove that the code worked.
Navajo code talkers in the 20th century were the people who used the coded language as the method of their communication during wartime. Using their Native language, the Navajo Code Talkers developed a confidential military code which gave assistance to the United States to achieve success in the Pacific during World War II.
Navajo code talkers tested their code by sending messages so as to ensure that the code can be decoded by the receiver or not.
The very factors that led to the rise of Great Zimbambwe are the same reasons that led to the its fall:
a.The rise Exhaustion of soils due to continuous farming. The plateau was exhausted by overpopulation of people and animals.
b.Scarcity of important
resources like firewood and pasture and drought.c.Civil war from poor leadership decision.
