Among the following,reaction(s) which give(s) | vedclass

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(A) Reaction $(A)$: Benzene reacts with $t$-butyl bromide in the presence of $NaOC_2H_5$. Since $NaOC_2H_5$ is a strong base,it causes dehydrohalogena

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$B, C, D$

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(A) Reaction $(A)$: Benzene reacts with $t$-butyl bromide in the presence of $NaOC_2H_5$. Since $NaOC_2H_5$ is a strong base,it causes dehydrohalogenation of $t$-butyl bromide to form isobutylene. Thus,no Friedel-Crafts alkylation occurs.Reaction $(B)$: Benzene reacts with isobutyl chloride in the presence of $AlCl_3$. The $AlCl_3$ induces a rearrangement of the isobutyl carbocation to a more stable $t$-butyl carbocation,which then attacks the benzene ring to form tert-butylbenzene.Reaction $(C)$: Benzene reacts with isobutylene in the presence of $H_2SO_4$. The acid protonates the alkene to form a $t$-butyl carbocation,which undergoes electrophilic aromatic substitution to form tert-butylbenzene.Reaction $(D)$: Benzene reacts with isobutyl alcohol in the presence of $BF_3 \cdot OEt_2$. The Lewis acid $BF_3$ facilitates the formation of a $t$-butyl carbocation via rearrangement,which then attacks the benzene ring to form tert-butylbenzene.Therefore,reactions $(B)$,$(C)$,and $(D)$ yield tert-butylbenzene as the major product.

Among the following,reaction$(s)$ which give$(s)$ tert-butylbenzene as the major product is(are):

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