Which K value below is consistent with an equilibrium system in which the reactants are favored?

A) K = 1
B) K = 1.8 x 103
C) K = 3.7 x 10–8
D) K = 500

C) K = 3.7 x 10^-8

In an equilibrium system where the reactants are favored, the value of K will be less than 1. The smaller the value of K, the less products are formed and the more reactants are favored. Therefore, the value of K = 3.7 x 10^-8 indicates that the reactants are favored in this equilibrium system.