Which Mineral Listed Below Is Associated with the Following Statements $\bullet$

Which mineral listed below is associated with the following statements?
- $\bullet$ Its absorption is an adaptive physiological response to diet; people on low intakes can absorb a larger proportion of this mineral compared to those on high intakes.

A) iodine
B) iron
C) calcium
D) magnesium
E) Phosphorus
F) copper
G) potassium
H) sodium