Which Statement Best Describes the Structure of Bone

Which statement best describes the structure of bone?

A) The organic component is a protein framework and the mineral component is a calcium chloride crystal.
B) The organic matrix is composed of collagen and the mineral component is an hydroxyapatite crystal composed mainly of calcium and phosphorus.
C) The organic component is a hydroxyapatite compound and the mineral component is composed mainly of calcium and phosphorus,as well as small amounts of magnesium,sodium and fluoride.
D) The organic component is made mainly of the protein collagen and the mineral component is mainly calcium and magnesium.