The main constituent of bones is: (A) \( \mathrm{CaCO}_{3} \) (B) \( \mathrm{CaF}_{2} \) (C) \( ...

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The main constituent of bones is:
(A) \( \mathrm{CaCO}_{3} \)
(B) \( \mathrm{CaF}_{2} \)
(C) \( \mathrm{CaSO}_{4} \)
(D) \( \mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2} \)
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