The Reaction Shown Below Is at Equilibrium

The reaction shown below is at equilibrium.Use LeChatelier's principle to predict the effect of adding ammonia gas to the equilibrium reaction mixture. N₂(g) + 3H₂(g) ⇌ 2NH₃(g)

A) The equilibrium position will remain unchanged.
B) The equilibrium position will shift to the right.
C) The equilibrium position will shift to the left.
D) The equilibrium constant will increase.
E) All of the nitrogen gas will be used up.