Which of the following does not give Friedel-Crafts reaction?

Identify the incorrect match in the following reactions:

Explain why aryl halides are extremely less reactive towards nucleophilic substitution reactions.

The compound $A$ is formed by the reaction of benzotrichloride with $Br_2$ in the presence of $Fe$. Identify the compound $A$.

Which of the following has the highest reactivity towards nucleophilic substitution reaction involving the cleavage of the $C-Cl$ bond?

Assertion : The presence of nitro group facilitates nucleophilic substitution reactions in aryl halides.
Reason : The intermediate carbanion is stabilized due to the presence of nitro group.