Which ratio of components is correct?

Question

a
For every 3 moles of carbon, the reaction produces 2 moles of Iron.
b
For every 4 moles of iron (III) oxide, the reaction produces 3 moles of carbon dioxide.
c
For every 2 moles of iron (III) oxide, the reaction produces 3 moles of carbon dioxide.
d
For every 3 moles of carbon, the reaction requires 4 moles of iron (III) oxide.

Answer 1

c
For every 2 moles of iron (III) oxide, the reaction produces 3 moles of carbon dioxide.