Assertion: $S_{N}2$ reaction of an optically active aryl halide with an aqueous solution of KOH always gives an alcohol with opposite sign of rotation

Reason: $S_{N}2$ reaction always proceed with retention of configuration

Ans. (d): Assertion is False, because aryl halide do not undergo nucleophilic substitution under ordinary condition this is due to resonance, because of which the carbon-chlorine bond acquires partial double bond character, hence it becomes shorter and stronger and thus cannot be replace by nucleophiles. 

Also, reason is false SN² reaction product with inversion of configuration.