The Reaction System POCl₃(g)

The reaction system
POCl₃(g)
POCl(g) + Cl₂(g)
Is at equilibrium.Which of the following statements describes the behavior of the system if POCl is added to the container?

A) The forward reaction will proceed to establish equilibrium.
B) The reverse reaction will proceed to establish equilibrium.
C) The partial pressures of POCl₃ and POCl will remain steady while the partial pressure of chlorine increases.
D) The partial pressure of chlorine remains steady while the partial pressures of POCl₃ and POCl increase.
E) The partial pressure of chlorine will increase while the partial pressure of POCl decreases.