At Room Temperature an Increase in the Number of Moles $\gt$

At room temperature an increase in the number of moles of gas as the reaction goes from reactants to products in a gas-phase equilibrium results in

A) K_p $\gt$ K_c.
B) K_p $\lt$ K_c.
C) K_p = K_c.
D) K_p + K_c =(RT) ^{$\Delta$ n}.
E) K_pK_c=(RT) ^{$\Delta$ n}.