Which Reaction Below Can Be Classified as a Redox/decomposition Reaction $\rightarrow$

Which reaction below can be classified as a redox/decomposition reaction?

A) 2 CuO $\rightarrow$ 2 Cu + O₂
B) 2 NO + O₂ $\rightarrow$ 2 NO₂
C) Sn + Cu(NO₃) ₂ $\rightarrow$ Sn(NO₃) ₂ + Cu
D) Cu(NO₃) ₂ + 2 NaOH $\rightarrow$ Cu(OH) ₂ + 2 NaNO₃