Calculating Equilibrium Constants

At 773^o C, a mixture of CO(g), H_2(g), and CH_3OH(g) was allowed to come to equilibrium. The reaction

CO(g) + 2H_2(g)CH_3OH(g)

At equilibrium, the concentration were determined to be: [CO] = 0.105 M, [H_2] = 0.250 M, dan [CH_3OH] = 0.00261 M. Determine the K_c for the reaction.

a. 0,0994
b. 0,3977
c. 10,057
d. 2,5144
e. 0,0026