For the following three reactions a, b and c, equilibrium constants are given <br> a. $CO(g)+ H_2O(g) =CO_2 (g) + H_2 (g); K_1$ <br> b . $CH_4 (g) + H_2O(g) =CO(g) + 3H_2 (g); K_2$ <br> c. $CH_4 (g) + 2H_2O(g) = CO_2 (g) + 4H_2(g); K_3$ <br> Which of the following relations is correct?

Question

( A ) $K_1\sqrt{K_2}=K_3$
( B ) $K_2K_3 = K_1$
( C ) $K_3{K^3_2}=K_1^3$
( D ) $K_3 = K_1K_2$