A 25 L Flask Is Filled with 0

A 2.5 L flask is filled with 0.25 atm SO₃,0.20 atm SO₂,and 0.40 atm O₂,and allowed to reach equilibrium.Assume the temperature of the mixture is chosen so that K_p = 0.12.Predict the effect on the partial pressure of SO₃ as equilibrium is achieved by using Q,the reaction quotient. 2
SO₃(g) ⇌ 2 SO₂(g) + O₂(g)

A) The partial pressure of SO₃ will decrease because Q > K.
B) The partial pressure of SO₃ will decrease because Q < K.
C) The partial pressure of SO₃ will increase because Q < K.
D) The partial pressure of SO₃ will increase because Q > K.
E) The partial pressure of SO₃ will remain the same because Q = K.