Answer:
Option B) KOH has the highest pH and the highest [OH-] concentration.
Step-by-step explanation:
The basicity of a substance increases as the dissociation coefficient increases. Generally, a strong base strongly ionizes in water according to the reaction:
![KOH + H_(2)O = K^(+) + OH^(-)](https://img.qammunity.org/2021/formulas/chemistry/middle-school/o12y1ufof8hgbkfecjswwvwzeqcte1g8ak.png)
Hence, from the table, KOH is a strong base.