Prime examples of minerals that act as electrolytes and help to maintain body fluid balance are ____.
A) calcium, iron, and phosphorus
B) sodium, potassium, and chloride
C) iodine, manganese, and selenium
D) copper, zinc, and fluorine
Question 2
Which of the following is classified as a trace mineral?
A) Phosphorus
B) Magnesium
C) Sulfur
D) Iron