What were houses on the great plains made of?

Things like mud and dung

According to GridHub, many Indians on the Great Plains were farmers which lived in these houses called lodges. Lodges had a wooden frame covered in soil and turf.

The correct answer is a. when they started making tools that will them in cultivating lands, they could raise crops and that made them attached to one place for a longer period of time. after that, they started domesticating animals and building their own permanent settlements that resemble the ones we have today.