The given osazone can be obtained by:

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(D) The given structure is the osazone of $D^{-}$-glucose,$D^{-}$-mannose,and $D^{-}$-fructose. These three sugars differ only in the configuration at

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Both $(a)$ and $(b)$

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(D) The given structure is the osazone of $D^{-}$-glucose,$D^{-}$-mannose,and $D^{-}$-fructose. These three sugars differ only in the configuration at $C-1$ and $C-2$. Since the osazone formation involves the reaction of the first two carbon atoms with phenylhydrazine,the configuration at $C-1$ and $C-2$ is lost,resulting in the same osazone for all three sugars. Therefore,the correct answer is $(d)$.

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