most likely C but i could be wrong
The government of ancient Egypt was a theocratic monarchy as the king ruled by a mandate from the gods, initially was seen as an intermediary between human beings and the divine, and was supposed to represent the gods' will through the laws passed and policies approved
I believe the answer is: local language
The main job of ethnographers is to explore and understand the cultural phenomenon that happen in one society. In order to obtain the full information, ethnographers need to directly communicate with the local people. Since we cannot expect them to learn our language, it is much better if we as ethnographers learn their language instead.
C would be the answer!
-Hope this helps!