<prompt> True statement regarding extracellular fluid to intracellular fluid is:ECF is rich in KECF volume is twice that of the ICFECF is rich in organic anionThere is high sodium and low potassium in ECF  <response>: Option A is incorrect. ICF is rich in K; ECF has a low concentration of K. Option B is incorrect. ICF volume 28 L is twice the volume of ECF 14 L. Option C is incorrect. ICF is rich in organic anions, the proteins. Other anions in ICF are inorganic phosphate. Option D is correct. There is high sodium and low potassium in ECF. 