Answer:
A. The Navajos distinguished themselves by using their language as a code the Japanese could not break.
Explanation:
During World War 2, there were famous Navajos known as the Navajo Code Talkers that helped use their language to transport secret message without the Japanese interfering.
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Explanation:
In geology, petrifaction or petrification is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.
The answer is most likely c.