Identifying Aromatic Compounds

Aromatic compounds are a significant category of organic molecules characterized by their stable ring structures and unique electronic properties. One of the most well-known aromatic compounds is benzene, a six-membered ring with alternating double bonds. Understanding the resonance stabilization and the rules that govern aromaticity is essential for distinguishing aromatic compounds from non-aromatic or anti-aromatic structures.

Which of the following compounds is an aromatic compound?