The radical because it has
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6 p -orbitals and 6 unpaired electrons
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7 p- orbitals and 6 unpaired electrons
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7 p- orbitals and 7 unpaired electrons
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6 p- orbitals and 7 unpaired electrons
A.
6 p -orbitals and 6 unpaired electrons
Due to the presence of 6p -orbitals and 6 unpaired electrons, it is aromatic in nature as these unpaired electrons delocalised in p-orbitals.