The Ocean's Physical Structure

The ocean's physical structure.Schematic of the average vertical zonation as sampled along a line from Greenland to the South Atlantic.

Within the mixing zone and thermocline,average temperature and salinity

A) decrease with depth.
B) increase with depth.
C) remain fairly constant with depth.
D) decrease within the mixing zone,but increases within the thermocline.
E) remain constant within the mixing zone,but increase within the thermocline.