Most stable carbocation among the following is

Options

A.
B.
C.
D. All of these

Answer

A

Explanation

The stability of carbocation increases with increasing the number of alkyl groups attached to positively charged carbon atom or with increasing the number of hyperconjugative structures. Thus, `1^(@)` carbocation `lt 2^(@)` carbocation `lt 3^(@)` carbocation.
Allyl and benzyl carbocation are stabilised by resonance.

Hence, is most stable due to resonance, that is absent in other carbocations.