Benzene: Resonance, Aromaticity — Prelims Questions

Which of the following compounds is aromatic?

What is the approximate resonance energy of benzene?

Which of the following statements about benzene is incorrect?

How many $\pi$ electrons are present in furan, and is it aromatic?

Which of the following describes the hybridization of carbon atoms in benzene?

Which of the following is the correct order of stability?