Consider the Equation: CH₄ (G)+ 2O₂ (G)⇔ CO₂ (G)+ 2H₂O

Consider the equation: CH₄ (g) + 2O₂ (g) ⇔ CO₂ (g) + 2H₂O (g) to answer the questions below.
-Refer to the equilibrium shown above. Adding excess oxygen will ________.

A) shift the reaction to the right
B) shift the reaction to the left
C) have no effect
D) cannot be determined, since the temperature is not known