If Kp is the equilibrium constant for the reaction 2 A (g) + B (g) = 4C (g), what is equilibrium constant (in terms of Kp) for the reaction 2 C (g) = A (g) + B (g)? O (a)Kp1/2 (b) Kp-1/2 (c) Kp-2 (d) K-1/2