0.010M solution an acid HA freezes at \[-0.0205{}^\circ C\]. If\[~{{K}_{f}}\] for water is \[1.860K\text{ }kg\text{ }mo{{l}^{-1}}\], the ionization constant of the conjugate base of the acid will be (assume \[0.010M=0.010m\])

• A. \[1.1\times {{10}^{-4}}\]
• B. \[1.1\times {{10}^{-3}}\]
• C. \[9.0\times {{10}^{-11}}\]
• D. \[9.0\times {{10}^{-12}}\]