Hydrogen Sulfide Will React with Water as Shown in the Following

Hydrogen sulfide will react with water as shown in the following reactions.

What is the value of K₂?

A) 1.3 $\times$ 10^-27
B) 2.3 $\times$ 10^-7
C) 1.3 $\times$ 10^-13
D) 7.7 $\times$ 10¹²
E) 7.7 $\times$ 10²⁶