The Iron Content of Foods Can Be Determined by Dissolving

Multiple Choice

The iron content of foods can be determined by dissolving them in acid (forming Fe³⁺) ,reducing the iron(III) to iron(II) ,and titrating with cerium(IV) : Fe²⁺(aq) + Ce⁴⁺(aq) → Fe³⁺(aq) + Ce³⁺(aq) .
Identify the two half-reactions in the above reaction.

A) oxidation half-reaction reduction half-reaction
Fe²⁺(aq) + e^-→ Fe³⁺(aq) Ce⁴⁺(aq) → Ce³⁺(aq) + e^-
B) oxidation half-reaction reduction half-reaction
Fe²⁺(aq) → Fe³⁺(aq) + e^- Ce⁴⁺(aq) + e^- → Ce³⁺(aq)
C) oxidation half-reaction reduction half-reaction
Ce⁴⁺(aq) + e^- → Ce³⁺(aq) Fe²⁺(aq) → Fe³⁺(aq) + e^-
D) oxidation half-reaction reduction half-reaction
Ce⁴⁺(aq) → Ce³⁺(aq) + e^- Fe²⁺(aq) + e^- → Fe³⁺(aq)