GKFix MCQ Question

What does the term "resonance energy" specifically refer to in the context of benzene?

• A. The energy required to break a C-C bond.
• B. The energy difference between two Kekulé structures.
• C. The extra stability benzene gains due to the delocalization of its π electrons compared to a hypothetical localized structure.
• D. The kinetic energy of the π electrons.