Identify the Reduction Half-Reaction in the Redox Equation

Multiple Choice

Identify the reduction half-reaction in the redox equation:
4 Ag + O₂(g) + 2 H₂O
4 Ag⁺ + 4 OH^-

A) Ag Ag + e^-
B) 4 Ag + 4 e^- 4 Ag⁺
C) 2 H₂O + 2e^- 4 OH^-
D) O₂(g) + 2 H₂O + 4 e^- 4 OH^-
E) 2 H₂O + 2 e^- H₂ + 2 OH^-