Answer:
This is mainly because the wall's constuction resulted in many on-site deaths, and I believe also hard working conditions.
Explanation:
C. Cambodia
Its leader was Pol Pot
It will be basically found in the glossary of the book or
mostly the glossary will be on the very last page of the book. We can find the
translation of terms using a glossary it is all well written there so better
look at it so that you will be able to see the foreign areas with translation
terms.