The Dietary Minerals Must Be in Ionic Form in Order

The dietary minerals must be in ionic form in order for the body to make use of them. Why?

A) so that the body can regulate the amount of intake to prevent toxic overdose
B) When not in ionic form, they become stored in the fatty tissue.
C) This is the only form that they are soluble in water and can be transported through the body.
D) to prevent acid-base reactions from occurring in the body