The traditional architecture in southern Yunnan, China is

Most Dai villages in Xishuangbanna, Yunnan Province are two-story bamboo buildings, usually with upper residence and lower storage. This is because the local climate is tropical monsoon climate, which is hot and rainy all year round. Living in a bamboo building is beneficial to ventilation, heat dissipation and moisture prevention. The igloo is a traditional residence in the Arctic, the cave is a traditional residence in the Loess Plateau, and the quadrangle is a traditional residence in Beijing.

So choose: a.