The reactions which is not involved in the extraction of iron from the mixture from the mixture of its ores:
`(Fe_(2)O_(3)+Fe_(2)O_(3).3H_(2)O+FeO_(3)+Fe_(3)O_(4))`
A. `Fe_(2)O_(3)+3CO to 2Fe+3CO_(2)`
B. `Fe_(2)O_(3)+3C to 2Fe+3CO`
C. `SiO_(2)+C to Si+CO_(2)`
D. `CaO+SiO_(2) to CaSiO_(3)`