C. the geography and climate of the area where they settled.
The years immediately following The Civil War in American History are known as the Reconstruction Era.
A person's point of view will make their answer a non biases answer. simply because they view something a certain way.
Answer:
During that time (WWII), Navajo Code and coders were an important necesity because they were people that helped with communication. Back then, Navajo coders were the only ones that knew this secret language and utilized it in order to inform others and their allies secretly.
Hope That Helped!
Explanation: