Which of the following molecules is expected | vedclass

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(B) The molecule in option $B$ is heptafulvene derivative connected to a cyclopentadiene ring. Upon heterolytic cleavage of the $\pi$-bond between the

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(B) The molecule in option $B$ is heptafulvene derivative connected to a cyclopentadiene ring. Upon heterolytic cleavage of the $\pi$-bond between the two rings,the electrons move towards the seven-membered ring,forming a tropylium cation ($C_7H_7^+$,$6\pi$ electrons,aromatic) and a cyclopentadienyl anion ($C_5H_5^-$,$6\pi$ electrons,aromatic). Since both rings become aromatic,this molecule exhibits the greatest resonance stabilization.

Which of the following molecules is expected to have the greatest resonance stabilization?

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