the answer is C, the OPEC oil embargo :)
The answer is B. They thought they could benefit from the area's warm climate and fertile soil.
Hope I helped
The answer to your question would be B
These scientists all study first source artifacts from prehistoric peoples, including fossils, archaeological digs, etc. By observing and analyzing these objects, they are able to infer how these prehistoric peoples lived before there was any written record.
To obtain money, the Han emperors created a monopoly on iron and salt.
