What is an appropriate method for the synthesis of phosphorus?
A) 2 Ca3(PO4) 2(s) + 10 C(s) + 6 SiO2(s) + heat → P4(g) + 10 CO(g) + 6 CaSiO3(l)
B) 4 PCl5(s) + heat → P4(g) + 10 Cl2(g)
C) 4 PH3(g) + heat → P4(g) + 6 H2(g)
D) P4O6(s) + heat → P4(g) + 3 O2(g)
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