Among the reactions (a) - (d), the reaction(s) that does/do not...

Among the reactions $\left(a\right) - \left(d\right),$ the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are:
$\left(a\right) CaO + Si{O}_{2} \to CaSi{O}_{3}$
\left(b\right) 3F{e}_{2}{O}_{3} + CO \to 2F{e}_{3}{O}_{4} + C{O}_{2}$<br />\left(c\right) FeO + Si{O}_{2} \to FeSi{O}_{3}$
\left(d\right) FeO \to Fe + \dfrac{1}{2}{O}_{2}