Ethanal, $\text{CH}_3\text{CHO}$, reacts with HCN by an addition reaction when $\text{CN}^-$ ions are present. Which row gives the reaction type and the name of the product formed?
- Aelectrophilic addition; 2-hydroxypropanenitrile
- Belectrophilic addition; 2-hydroxyethanenitrile
- Cnucleophilic addition; 2-hydroxypropanenitrile
- Dnucleophilic addition; 2-hydroxyethanenitrile