This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
The physiological impoant anion other than chloride is: 
Select and explain. 
A. Nitrate, B. Phosphate, C. Bicarbonate, D. Sulphate
C: Bicarbonate
Answer: C: Bicarbonate 
Explanation: Ionic distribution(mEq/L) of ions in plasma is: Cl- :111 HCO3- : 26.2 PO43- :1 Proteins:17.2 Ref: textbook of physiology(page no:30) Volume 1 AK Jain 7th edition