Among the given species,which carbocations ar | vedclass

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(B) carbocation is resonance stabilized if the positive charge is in conjugation with a $\pi$-bond or a lone pair of electrons.$A$: The benzyl carboca

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$A$,$B$ and $C$ only

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(B) carbocation is resonance stabilized if the positive charge is in conjugation with a $\pi$-bond or a lone pair of electrons.$A$: The benzyl carbocation $(C_6H_5CH_2^+)$ is resonance stabilized by the benzene ring.$B$: The allyl carbocation $(CH_2=CH-CH_2^+)$ is resonance stabilized by the adjacent $\pi$-bond.$C$: This is a cyclohex$-2-$en$-1-$yl cation. The positive charge is on the carbon adjacent to the double bond,so it is resonance stabilized.$D$: The positive charge is on the $sp^2$ carbon of a vinylic system,which is not in conjugation with the carbonyl group in a way that provides resonance stabilization to the carbocation center itself (the carbonyl group is electron-withdrawing by induction).Thus,$A$,$B$,and $C$ are resonance stabilized.

Among the given species,which carbocations are resonance stabilized?

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