According to what I remember, it would be B. El Nino.
Forgive me if this is wrong.
Answer:
a large Asian Population.
Explanation:
I thought you were asking what comes after 23 );
Explanation:
There are two plate tectonics. The the arrows that are going outwards show that there are one on each arrow because, the line splits them in half and it said that it split them in half in the directions.