For the Reaction Given Below, Identify the Anode and Describe $\rarr$

For the reaction given below, identify the anode and describe what happens to the electrode as the reaction continues.
3Fe(s) + Cr₂O₇^2-(aq) + 14 H⁺(aq) $\rarr$ 3Fe²⁺(aq) + 2 Cr⁺³(aq) + 7H₂O(l)

A) Fe, converted to Fe²⁺; electrode decreases in size
B) Fe, converted to Fe²⁺; electrode gains mass
C) Passive electrode at which Cr₂O₇^2-(aq) is oxidized; electrode is unchanged
D) Fe electrode at which Cr⁺³ is oxidized; electrode is unchanged
E) Fe electrode; no change