One of the origins of the festival goes back to the Chinese （）, and it was also a type of （） in the Heian period.（）

One of the origins of the festival goes back to the Chinese （）, and it was also a type of （） in the Heian period.（）
A.purification rituals, poetry meeting
B.purification rituals, friends meeting
C.business rituals, poetry meeting
D.business rituals, friends meeting
正确答案：A