The Equilibrium Constant for the Reaction CO + ½O₂ $\rightarrow$ CO₂ at 1 Atm and 1500°C Is Given to Be

The equilibrium constant for the reaction CO + ½O₂ $\rightarrow$ CO₂ at 1 atm and 1500°C is given to be K. Of the reactions given below, all at 1500°C, the reaction that has a different equilibrium constant is

A) CO + ½O₂ $\rightarrow$ CO₂ at 5 atm,
B) 2 CO + O₂ $\rightarrow$ 2CO₂ at 1 atm,
C) CO + O₂ $\rightarrow$ CO₂+ ½O₂ at 2 atm,
D) CO + ½O₂ + 3N₂ $\rightarrow$ CO₂+ 3N₂ at 5 atm,
E) CO + ½O₂ + 3N₂ $\rightarrow$ CO₂+ 3N₂ at 1 atm,