Which of the following metals is the most essential in the regulation of blood volume, blood pressure and osmotic equilibrium? By: Sunday|Published on: Jan 2|Categories: Chemistry WAEC| 0 comments A. Zinc B. Manganese C. Sodium D. Iron Correct Answer: Option C C. Sodium Users Also Read These:Use arrows to show the route and direction of blood…Increasing adrenalin content of the blood would be…A muslim woman who notices blood after the…The blood vessel that supplies blood rich in…A woman with blood group A gives birth to a child…SEE ALSO Use the diagram to answer this question. The colour of the fountain water is?