Benzene is resonance hybride of the following resonance contributors:
Which of the following statements is correct?

Options

A. All the above structures represent discrete real mjolecules.
B. All the above structures contribute equally.
C. Structures I and II contribute equally and to the highest extent.
D. Structures III, IV and V are not planar.

Answer

C

Explanation

All the contributors are hypothetical I and II are Kekule structures with `80%` contribution while III, IV and V are Dewar strutuctures with `20%` contrubution.