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The order of relative stability of the contributing structure is : CH 2 CH I = C H O : : CH 2 CH II = C H O : .. : Θ ⊕ CH 2 CH III = C H O : : : Θ Choose the correct answer from the options given below:

1. III > II > I
2. I > II > III
3. II > I > III
4. I = II = III

Correct answer: I > II > III

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