Water Is Most Dense and Thus Heavier at 4 Degrees

Water is most dense and thus heavier at 4 degrees Centigrade.At zero degrees Centigrade ice forms and can float on liquid water.Suppose ice were most dense at zero degrees Centigrade.Select the best explanation of what would happen in aquatic systems.

A) The ice would cover the surface of the aquatic system and would never melt.
B) The ice would cover the bottom of the aquatic system and would build up in layers over time,especially in colder climates.
C) The ice would eventually form into large sheets and would travel as a glacier carving out more depressions for lakes to form.
D) The cold temperatures and the subsequent ice formation would prevent hydrogen bonds from forming between the water molecules,thus causing the existing ice crystals to become disassociated from each other.