Which of the following is incorrect about relationship between $K_p$ and $K_c$?

Question

(a) When, $\Delta n_g = 0, K_p = K_c$

(b) When, $\Delta n_g > 0, K_p > K_c$

(c) When, $\Delta n_g < 0, K_p < K_c$

(d) When, $\Delta n_g > 0, K_p < K_c$