问题详情

What does the professor mean when he says that folktales are communal？

A．They vary little from one community to another.

B．They serve to strengthen ties among individuals within a community.

C．They relate important events in the history of a community.

D．They can be adapted to meet the needs of a community.

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！