If you were to count the numbers of each type of atom in the formula Mg3(PO4)2, what would the answer be?

a) 5 magnesium atoms, 4 phosphorus atoms, and 6 oxygen atoms
b) 6 magnesium atoms, 4 phosphorus atoms, and 8 oxygen atoms
c) 3 magnesium atoms, 2 phosphorus atoms, and 4 oxygen atoms
d) 3 magnesium atoms, 2 phosphorus atoms, and 8 oxygen atoms