નીચેનામાંથી કઈ પ્રક્રિયા કોઈ રેસમિક નીપજ ઉત્પન્ન કરશે નહીં?

• A

  $\begin{array}{*{20}{c}}   {C{H_3}\,\,\,\,\,\,\,\,\,\,} \\    {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\    {C{H_3} - C - CH = C{H_2}} \\    {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\    {H\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}  \end{array}\xrightarrow{{HCl}}$

• B

  $\begin{array}{*{20}{c}}   {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\    {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\    {C{H_3} - C - C{H_2} - C{H_3}}  \end{array}\xrightarrow{{HCN}}$

• C
  
• D

  $\mathrm{CH}_{3}- \mathrm{CH}_{2} -\mathrm{CH}=\mathrm{CH}_{2} \stackrel{\mathrm{HBr}}{\longrightarrow}$