Which one of the following is most reactive towards nucleophilic substitution reaction?

Given data : It is given to identify which one of the following is most reactive towards nucleophilic substitution reaction

 Explanation

$ClC{H}_2– CH = C{H}_2$ , the halide group that the nucleophile is likely to attack is not immediately linked to the double-bonded carbon, the resonance interaction is smaller and the nucleophilic substitution is more common in allylic halides than in vinyl and benzyl halides.

The parent chloride will be more reactive the more stable the carbonation. 

Hence the correct answer (D) $ClC{H}_2– CH = C{H}_2$.