Compound which shows positive mesomeric effect:

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Answer :

Compound which shows positive mesomeric effect: A. `H_(2)C=CH-Cl` B. `C_(6)H_(5)-overset(+)N-Me_(3)` C. `H_(2)C=CH-CH_(2)Cl` D. `C_(6)H_(5)-CH=CHCl`

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