In a blast furnace, iron is made from iron ore. Which equation shows the main reaction occurring in zone 1?
- A$\text{C(s)} + \text{CO}_2\text{(g)} \rightarrow 2\text{CO(g)}$
- B$\text{C(s)} + \text{O}_2\text{(g)} \rightarrow \text{CO}_2\text{(g)}$
- C$\text{Fe}_2\text{O}_3\text{(s)} + 3\text{CO(g)} \rightarrow 2\text{Fe(l)} + 3\text{CO}_2\text{(g)}$
- D$\text{Fe}_3\text{O}_4\text{(s)} + \text{CO(g)} \rightarrow 3\text{FeO(s)} + \text{CO}_2\text{(g)}$