D is the answer for this question as it is the most likely.
The Khmer Rouge in Cambodia was primarily a result of an extreme political ideology. Cambodians have Vietnamese influence and had desire to kick the French out. When their civilization suffers, they resorted to extremism.
The answer would be letter A.
Answer: The Land Bridge Theory is: Native Americans migrated from Asia to North America across a land bridge that formed during the Ice Age.
Hope this helped.
Explanation:
they wanted to have people have power in the new government because they where sick of the monarchy of england
