The following is a redox reaction between potassium and bromine to form potassium bromide:
2 K + Br₂ → 2 KBr
Separate this redox reaction into its component half-reaction.

• A.
  Oxidation Half Reaction: 2 K → 2 K⁺ + 2 e^-
  
  Reduction Half Reaction: Br₂ + 2 e^-
  → 2 Br^-
  
• B.
  Oxidation Half Reaction: K → K⁺ + e^-
  
  Reduction Half Reaction: Br₂ + 2 e^-
  → 2 Br^-
  
• C.
  Oxidation Half Reaction: 2 K → 2 K⁺ + 2 e^-
  
  Reduction Half Reaction: Br + e^-
  → Br^-
  
• D.
  Oxidation Half Reaction: K → K⁺ + e^-
  
  Reduction Half Reaction: Br + e^-
  → Br^-