Which of the following is the most stable resonance structure ?

Options

A.
B.
C.
D.

Explanation

To determine the most stable resonance structure, we need to evaluate the given resonance structures based on three key principles:

1. **Neutral vs. Charged Species**: Neutral resonance structures are generally more stable than charged ones.
2. **Number of Covalent Bonds**: Structures with more covalent bonds are typically more stable.
3. **Electronegativity and Charge**: Negative charges should reside on more electronegative atoms, while positive charges should be on less electronegative atoms.

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