I know the first blank is C. Im not sure about blank 2.
It showed how strong North Vietnam was and it's potential of how threatening they were.
Answer:
I would say A
Explanation: even tough they had sacrifices they didn't go to war just to secure more people to sacrifice to the gods and those sacrificed were treted like gods before they met their demise and they had llamas and they did have great transportation because how would you explain mancu picu
Most soldiers started to use gas bombs
The world of heaven in my opinion