Minerals Are Classified into "Major" and "Trace" Minerals

Multiple Choice

Minerals are classified into "major" and "trace" minerals. Which of the following lists includes only contains major minerals?

A) calcium, iron, zinc, phosphorus
B) iron, selenium, sodium, magnesium
C) copper, chromium, fluoride, iodine
D) potassium, sodium, magnesium, calcium
E) magnesium, manganese, molybdenum, chloride