ICl(g) ⇌ 1/2 I₂(g) + 1/2 Cl₂(g) Keq = 0.1

Based on the information above, what is the value of Keq for the reaction represented below?
I₂(g) + Cl₂(g) ⇌ 2ICl(g)

a. 0.01
b. 10
c. 20
d. 100