The Reaction System Is at Equilibrium

The reaction system is at equilibrium. Which of the following statements describes the behavior of the system if the partial pressure of chlorine is reduced by 50%?

A) POCl₃ will be consumed as equilibrium is established.
B) POCl will be consumed as equilibrium is established.
C) Chlorine will be consumed as equilibrium is established.
D) The partial pressure of POCl will decrease while the partial pressure of Cl₂ increases as equilibrium is established.
E) The volume will have to decrease before equilibrium can be reestablished.