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(C) The given reactant is $4$-methylphenylglyoxal $(CH_3-C_6H_4-CO-CHO)$.This compound contains two carbonyl groups,both of which lack $\alpha$-hydrog

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$2-$hydroxy$-2-$($4$-methylphenyl)acetic acid

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(C) The given reactant is $4$-methylphenylglyoxal $(CH_3-C_6H_4-CO-CHO)$.This compound contains two carbonyl groups,both of which lack $\alpha$-hydrogens.When treated with concentrated $NaOH$ followed by acid workup $(H_3O^+)$,it undergoes an intramolecular Cannizzaro reaction.The aldehyde group $(-CHO)$ is more reactive towards nucleophilic attack than the ketone group $(-CO-)$.Therefore,the aldehyde group is oxidized to a carboxylic acid $(-COOH)$ and the ketone group is reduced to a secondary alcohol $(-CH(OH)-)$.The resulting product is $2$-hydroxy-$2-(4$-methylphenyl$)$acetic acid.

The major product of the following reaction is

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