N2O4(g) ↔ 2NO2(g). Increase in total pressure of the equilibrium reaction above will
A. produce more of NO2(g) in the mixture
B. convert all of N2O4(g) to NO2(g)
C. have no effect on the concentrations of NO2(g)and N2O4(g)
D. produce more of N2O4(g) in the mixture