Hypothesize how global warming might affect the polar ice caps and salinity of ocean water

The increase of the Earth’s mean temperature will cause the polar caps to begin to melt as the Earth is getting hotter. The melting of the polar ice caps could then affect the salinity of ocean as the ice caps are not saline: therefore, as they melt and fall into the ocean, they decrease the ocean’s salinity.

The answer is c) people evacuated but almost all returned

Here is a picture  of the net. its 4 squares in a row diagonal and on the third draw one square aove and under