Identify Any Intermediates or Catalysts in the Following Two-Step Reaction

Identify any intermediates or catalysts in the following two-step reaction: Cu²⁺ + H₂ → CuH⁺ + H⁺ CuH⁺ + H⁺ + H₂C=CH₂ → Cu²⁺ + H₃C-CH₃

A) CuH⁺ is an intermediate.
B) Cu²⁺ is a catalyst, H⁺ is an intermediate.
C) Cu²+ is a catalyst, CuH⁺ is an intermediate.
D) Cu²+ is a catalyst, CuH⁺ and H⁺ are intermediates.
E) CuH⁺ and H⁺ are catalysts, Cu²⁺ is an intermediate.