In Liang Zhu Culture and Long Shan Culture, many jades such as Cong(玉琮),Bi-disk(玉壁)or Gui tablet(玉圭)were believed to be used for（）purposes.

In Liang Zhu Culture and Long Shan Culture, many jades such as Cong(玉琮),Bi-disk(玉壁)or Gui tablet(玉圭)were believed to be used for（）purposes.
A.burial　
B.ceremonial　
C.decorative　
D.display
正确答案：ceremonial