Relative stabilities of the following carbocation will be in order:

A > B > C > D

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A > B > D > C

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B > C > A > D

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B > C > D > A

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Solution

The correct option is A A > B > C > D

More electron rich the benzene, greater it can stabilize the carbocation through resonance.

Greater the $+ M$ effect of the substitutents, more electron rich the benzene ring and hence more stabilization of the carbocation.
Order of $+ M$ effect $- O C H_{3} > - C H_{3}$ hence the correct order of stability is A > B > C > D

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