Which of the following compounds will form lactic acid from its cyanohydrin?

The structure shown in the figure is best classified as a(an):

$CH_3-CH(OH)-CH_2-CHO$
$3HCHO + A \xrightarrow[40^o C]{Na_2CO_3} (B) (82\%)$
Product $(B)$ of the above reaction is

Assertion : $2, 2-$ Dimethylpropanal undergoes Cannizzaro reaction with conc. $NaOH$.
Reason : Cannizzaro reaction is a disproportionation reaction.

For the given compound,determine the number of hydrogen atoms that are replaced by $D$ upon keeping it for a long time with $\mathop O\limits^\ominus D / D_2O$.

Match List $-I$ with List $-II.$

List $-I$ (Products formed)	List $-II$ (Reaction of carbonyl compound with)
$(a).$ Cyanohydrin	$(i).$ $NH_2OH$
$(b).$ Acetal	$(ii).$ $RNH_2$
$(c).$ Schiff's base	$(iii).$ Alcohol
$(d).$ Oxime	$(iv).$ $HCN$

Choose the correct answer from the options given below: