Answer:
The US wanted to force the Navajos and other Native American tribes to assimilate into American culture, so they tried to destroy their culture by making them not speak their language (until WWII, where they became the renowned Navajo Code Talkers)
Explanation:
It was technically genocide, since the US wanted to get rid of all Native American culture.
It is Containment. I hope this helps.
The correct answer D....Spatial apex answer