After Allowing the Reaction to Proceed, You Find That the The Final

Multiple Choice

After allowing the reaction to proceed, you find that the the final concentrations of each reagent $\frac{[\mathrm{C}][\mathrm{D}]}{[\mathrm{A}][\mathrm{B}]}$ once equilibrium is achieved is $\frac{[0.3][0.3]}{[0.7][0.7]}$
What is the value of the equilibrium constant K_eq?

A) 18
B) 1.8
C) 0.18
D) .001