The decreasing order of reactivity towards dehydrohalogenation (E1) reaction of the following compounds is :

Question

The decreasing order of reactivity towards dehydrohalogenation (E₁) reaction of the following compounds is :

B $>$ D $>$ A $>$ C

D $>$ B $>$ C $>$ A

B $>$ A $>$ D $>$ C

B $>$ D $>$ C $>$ A

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