IUPAC naming question, here, why is the answer not A, because in the rules it is written that we take the most branched parent chain, so shouldn't we take the one with 3 substituent groups?

4yr ⋅ ⋅

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I understand that because of the lone pair on nitrogen , option A is incorrect, and because NO2 is highly deactivating, D is also incorrect. How to decide between A and B?(I think C is wrong because it is also highly deactivating and B should also be wrong since it can form bond with incoming ephile

4yr ⋅

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