The most stable carbocation is:

Options

A. `CH_(3)overset(+)CH_(2)`
B. `overset(+)CH_(3)`
C. `CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C+`
D. `CH_(3)-underset(CH_(3))underset(|)overset(+)CH`

Answer

C

Explanation

Due to inductive effect and hyperconjugation effect of methyl groups, the order of stability of carbocation is
`3^(@)R^(+) gt 2^(@)R^(+) gt 1^(@)R^(+) gt overset^(+)CH_(3)`
`(CH_(3))_(3)overset(+)C`, being a `3^@` carbocations, is the most stable.