Please help me.

b

Explanation:

Indians of the southwest made bricks out of dirt and straw and dried them in the sun to build their pueblos. ... Most pueblos had large underground rooms called kivas that were used for ceremonies and meetings. Structures made of adobe would not stand up to long periods of rain—over time they would dissolve! a communal structure for multiple dwelling and defensive purposes of certain agricultural Indians of the southwestern U.S.: built of adobe or stone, typically many-storied and terraced, the structures were often placed against cliff walls, with entry through the roof by ladder.

b or c im pretty sure