The correct answer is D) housing and artifacts.
The Ancestral Puebloans were an ancient Native American culture that occupied Colorado, Utah, Arizona and New Mexico. Remains found by archaeologists suggest they had knowledge on pottery, knitting and irrigation. They also created many pictographs and petroglyphs. Artifacts such as cliff houses, rock art and systems of roads helped historians learn more about Ancestral Pueblo.
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<em>if they were building the strong fortress on top of the high hill, they could see their enemy coming from far away.</em>
The answer to this question is B.)
U.S. forces, supported by South Vietnam, fought North Vietnamese forces.
