$(\text{CH}_3)_3\text{CCN}$ is converted into alcohol Y by the reaction pathway shown below. $(\text{CH}_3)_3\text{CCN} \xrightarrow{\text{H}^+\text{(aq)}} X \xrightarrow{\text{LiAlH}_4}$ alcohol Y Which row gives the name of molecule X and the type of alcohol Y?
- A2,2-dimethylbutanoic acid; primary
- B3,3-dimethylbutanoic acid; tertiary
- Cdimethylpropanoic acid; primary
- Ddimethylpropanoic acid; tertiary