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(C) In resonance structures,the nitrogen atom $(N)$ in the nitro group has a valency of $4$ (forming $4$ bonds). If $N$ forms $5$ bonds,it would excee

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(C) In resonance structures,the nitrogen atom $(N)$ in the nitro group has a valency of $4$ (forming $4$ bonds). If $N$ forms $5$ bonds,it would exceed its octet,which is not possible for second-period elements like nitrogen. Structure $(C)$ shows the nitrogen atom forming $5$ bonds (one double bond with the ring,two double bonds with oxygens,and one single bond with the other oxygen),which violates the octet rule. Therefore,it is the most unlikely representation.

The most unlikely representation of resonance structures of $p-$nitrophenoxide ion is

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