The people of the Arctic lived in

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igloos
wigwams
cliff dwellings
longhouses

igloos

The people of the Arctic traditionally lived in igloos.

The people of the Arctic lived in igloos.

To arrive at this answer, we can consider the traditional dwellings that were commonly built by Indigenous Arctic communities. One common dwelling type is the igloo, which is typically made from blocks of compacted snow. Igloos were designed to provide insulation and protection from the extreme cold temperatures and harsh conditions of the Arctic environment. Igloos were practical due to the availability of snow, which could be easily molded into a dome-shaped structure.

On the other hand, wigwams are not typically associated with the Arctic region. Wigwams are dome-shaped dwellings made by Native American cultures in northeastern parts of North America. They were constructed using a framework of wooden poles covered with bark or animal hides.

Cliff dwellings, on the other hand, are commonly associated with Ancestral Pueblo cultures, who lived in the southwestern parts of North America. They built their homes in the walls of cliffs, utilizing natural rock formations to create multi-story structures.

Longhouses are also not typically associated with the Arctic. Longhouses were predominantly built by Indigenous cultures in the northeastern woodlands of North America. They were long, narrow structures made from a frame of wooden poles covered with bark or animal hides.

Therefore, based on the given options and considering the Arctic region, the correct choice is igloos.