Salinity- Driven Currents Are Considered a Major Factor in Ice-

Salinity- driven currents are considered a major factor in ice- age glacial expansions because:

A) salt lowers the freezing point of water.
B) their heat- carrying capacity during nonglacial times transports heat from the lower latitudes to the higher latitudes.
C) dense saline water has a higher albedo than less saline water.
D) dense saline currents are more able to transport large blocks of ice.