According to the professor, what is an advantage of the Different-Cultures Model？A．It focu

According to the professor, what is an advantage of the Different-Cultures Model？

A．It focuses on the history of the United States.

B．It is based upon the most widely researched theories.

C．It includes the history of a variety of cultural groups.

D．It makes thematic connections across different cultural groups.

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！