An Isotonic State Exists Within a Patient's Body Fluids When

An isotonic state exists within a patient's body fluids when the solute concentration of:

A) interstitial fluid is less than the transcellular.
B) intracellular and extracellular fluid is equal.
C) intracellular fluid is greater than extracellular fluid.
D) extracellular fluid is lesser than intracellular fluid.