Melt ponds and moulins are closely associated with melt ponds and moulins are closely associated with greenland the rocky mountains c climates antarctica coastal climates

I believe the answer is: Greenland

melt ponds is the pond that created after a frozen water is liquidated., and moulins is hole or crevasse worn in the ice by surface water. Both of these things could only be found on the region who constantly exprienced low temperature below such Greenland.

Ithink it's a, but i might be wrong