Answer:
B
Explanation:
China sent 2.97 million Chinese soldiers total to help fight against the UN forces.
That is entirely up to the person.
I believe it was the Somalis, as they are mainly run by Pirate Groups.
The likely effect of such trail lines that were left by pioneers migrating to the west were that people who moved there afterrwards were able to derive information regarding where it was relatively safe and where territory has been charted and mapped before. This enabled a little certainty in areas of great danger.