The main characteristic of body fluid change in hypovolemic hyponatremia is that（）

A、Intracellular fluid is decreased, extracellular fluid is increased;

B、Intracellular fluid is normal, extracellular fluid is decreased;

C、Intracellular fluid is decreased, extracellular fluid is normal;

D、Intracellular fluid is increased, extracellular fluid is decreased;

E、Intracellular fluid loss is identical to extracellular fluid loss