Which of the following reactions does not take place in the smelting of iron in a blast furnace?

A. CaCO3(s)→CaO(s)+(CO2(g)
B. C(s)+O2(g)→CO2(g)
C. 3Fe(s)+2O2(g)→FeO4(s)
D. SiO2(s)+CaO(s)→CaSiO3(s)
E. CO2(g)+C(s)→2CO(g)