Kidneys Are Often Difficult to See Without Dissection Because They

Kidneys are often difficult to see without dissection because they are surrounded by a layer of fat. What is the significance of this fat

A) It expands for storage of additional urine once the bladder is full; it acts as a sponge.
B) It provides cushioning or padding for protection from sudden jolts or other injuries.
C) There is no special significance; this fat stores energy as do other fat deposits in the abdominal cavity.
D) This fat cools the kidneys during active filtration.
E) None of the answers are correct.