Answer:
I thinks it's B
Explanation:
Because it's what dams do.
It's not D because it caused people to relocate, it's not C because that doesn't make sense.
The area of the Balkan countries is frequently plagued by ethnic conflict that generates tension among the nations. This tension has given away to several small conflicts and the trend continued. The location of the Balkans is strategically very important. I hope the answer helps you.
There are more tropical storms that may increase in magnitude
