D $$-$$ (+) $$-$$ Glyceraldehyde $$\xrightarrow{\text{i) HCN}}$$ $$\xrightarrow{\text{ii) H}_2\text{O/H}^+}$$ $$\xrightarrow{\text{iii) HNO}_3}$$
The products formed in the above reaction are

A

One optically active and one meso product

B

Two optically inactive products

C

Two optically active products

D

One optically inactive and one meso product