The answer would be A as it is for your own benefit.
I don't know the exact answer but i will try to help. I believe because as the Islam traded with asia, the merchants had to take long, harsh trips to get to South east Asia and so many stayed and sold their contents there instead of risking their health and even their lives to travel back to their home.
Answer:
enough using low
Explanation:
a country has an absolute advantage if it can produce enough goods using low inputs than another country
