When at equilibrium, which of the reactions below will shift to the right if the pressure is increased and the temperature is kept constant .
A. 2SO3(g) → 2SO2(g) + O2(g)
B. 2SO2(g) → 2CO(g) + O2(g)
C. 2H2(g) +’!O2(g) → 2H2O(g)
D. 2NO(g) → N2(g) + O2(g)