d
\(C{{H}_{3}}-CH=C{{H}_{2}}\xrightarrow[(electrophilic\,addition)]{\overset{\delta -}{\mathop{HO}}\,-\overset{\delta +}{\mathop{Cl}}\,}\) \(\underset{(\operatorname{int}ermediate)}{\mathop{C{{H}_{3}}-\overset{+}{\mathop{C}}\,H-C{{H}_{2}}-Cl}}\,\) \(\xrightarrow{O{{H}^{-}}}C{{H}_{3}}-CH(OH)-C{{H}_{2}}-Cl\)