The Six Elements Most Common in Organisms Are

Multiple Choice

The six elements most common in organisms are

A) calcium, iron, hydrogen, phosphorus, potassium, and oxygen.
B) water, carbon, hydrogen, nitrogen, sodium, and oxygen.
C) carbon, oxygen, hydrogen, phosphorus, sulfur, and nitrogen.
D) nitrogen, carbon, iron, sulfur, calcium, and hydrogen.
E) phosphorus, helium, carbon, potassium, hydrogen, and oxygen.