Which Native American culture is associated with living in "long houses"?

The Iroquois culture is well-known for its use of long houses, which were large, communal living structures made from wood and bark, often accommodating multiple families related through the maternal line. These long houses were quite spacious, reflecting the social organization of the Iroquois, which emphasized extended family connections. The design of long houses also played a significant role in community life, as they facilitated social interactions and supported the matrilineal aspect of Iroquois society.

Other cultures mentioned, such as the Navajo, Cherokee, and Sioux, had different housing structures that were more suited to their specific environmental conditions and social needs. For example, the Navajo are known for their "hogans," the Cherokee traditionally built "wigwams," and the Sioux used "tipis," which were designed for mobility and the lifestyle of the Plains. The distinctiveness of the long house clearly links it to the Iroquois culture, making it the correct choice for this question.