All river water comes from melted ice from mountains near them, so the time of year to temp. change depicts how much ice is melted into the river banks.
The answer SHOULD be D, if I'm wrong, I really am sorry.
Add a picture, this is a question that needs to be seen because they may try putting the countries in random places.
Answer:
To deplete freshwater consumption of the water must be greater than the renewal rate. If the precipitation collected it does not mean it depleted, it can be still used later on.
