If the Equilibrium Constant for the Reaction C + O₂ $\rightarrow$

If the equilibrium constant for the reaction C + O₂ $\rightarrow$ CO₂ is K, the equilibrium constant for the reaction 2CO₂ $\rightarrow$ 2C + 2O₂ at the same temperature is

A) 1/K
B) 1/(2K)
C) 2K
D) K²
E) 1/K²