The professor mentions a theory that people migrating from the Sahara were important to th

The professor mentions a theory that people migrating from the Sahara were important to the development of the Egyptian civilization. Which sentence best describes the professors attitude toward this theory？

A．It is exciting because it perfectly explains recent archaeological discoveries.

B．It is problematic because it goes too far beyond the generally available data.

C．It raises an interesting possibility and he hopes to see more evidence for it.

D．It cannot be taken seriously until it explains how the migrants got to Egypt.

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！