Explanation:
"An open lake is a lake where water constantly flows out under almost all climatic circumstances.
In a closed lake (see endorheic drainage), no water flows out, and water which is not evaporated will remain in a closed lake indefinitely. This means that closed lakes are usually saline, though this salinity varies greatly from around three parts per thousand for most of the Caspian Sea to as much as 400 parts per thousand for the Dead Sea. Only the less salty closed lakes are able to sustain life, and it is completely different from that in rivers or freshwater open lakes. Closed lakes typically form in areas where evaporation is greater than rainfall, although most closed lakes actually obtain their water from a region with much higher precipitation than the area around the lake itself, which is often a depression of some sort."
I have never heard of a Standing Lake so question D.
Most closed lakes don't contain fresh water, so cross out C.
A closed lake has neither A or B, since it's closed.
I'd say that your best answer would be D, since standing can mean static, which means motionless. Since it's closed it has no current making it static.
I hope you get it right.
