For the reaction $B^{-} + H_2O \rightleftharpoons HA + OH^{-}$,the value of the hydrolysis constant at equilibrium is equal to $K_a^{-1} = \dots \dots$
- A$\frac{[HA]}{[H^{+}][A^{-}]}$
- B$\frac{[H^{+}][A^{-}]}{[HA]}$
- C$[H^{+}][A^{-}]$
- D$\frac{[H^{+}][OH^{-}]}{[B^{-}]}$
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