In the broadest sense, just as archaeology is an aspect of anthropology, ______.A．so too i

In the broadest sense, just as archaeology is an aspect of anthropology, ______.

A．so too it is a part of history

B．so too is it a part of history

C．neither too it is a part of history

D．neither too is it a part of history

请帮忙给出正确答案和分析，谢谢！