Answer:
b. creation of the world
Explanation:
Origin of the world where it is the beginning of human kind. I'm not sure but there's a lot of article I have seen anf some of them state the creation of humans.
There were a couple of reasons for this. First, the Americans were an invading force, and the Vietnamese were fighting on their own soil. Second, the Americans were not willing to make an all-out commitment to win.
