Halogenoalkanes can undergo \({{\text{S}}_{\text{N}}}{\text{1}}\) and \({{\text{S}}_{\text{N}}}{\text{2}}\) reactions with aqueous sodium hydroxide. Which halogenoalkane will react fastest with a \({\text{0.1 mol}}\,{\text{d}}{{\text{m}}^{ - 3}}\) solution of aqueous sodium hydroxide?

A.     2-chloro-2-methylpropane

B.     2-iodo-2-methylpropane

C.     1-chlorobutane

D.     1-iodobutane

B