\(CH_3CHO+HCN\rightarrow CH_3CH(OH)CN\\ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\downarrow{\bf{H.OH}}\\ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~CH_3CH(OH)COOH~\)

1. 100 % R-isomer

2. 100% S-isomer

3. 50% R + 50% S-isomer

4. 20% R + 80% S-isomer

The major organic product formed from the following reaction

is:
 

1.		2.
3.		4.