Answer:
Trading is (and was) a way to put a price on something so that we know its worth.
If someone needs something, they can "trade" something for what they need.
<em> - Anyways, hope this helps!</em>
The correct answer is A.) a foreign policy stance that advocates multilateral engagement for the good and protection of an allied country.
An example of this can be post WW1 and post WW2 when countries helped their allies rebuild and organizations such as the United Nations and the League of Nations were found.
I cannot see the list so I couldn't tell you
Shi huangdi was the first emperor
