The major product \([B]\) in the following sequence of reactions is \(\begin{array}{*{20}{c}}
  {C{H_3} - C = CH - C{H_2}C{H_3}} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {CH{{(C{H_3})}_2}\,\,\,\,\,\,\,\,\,\,} 
\end{array}\xrightarrow[{(ii)\,{H_2}{O_2},O{H^ - }}]{{(i)\,{B_2}{H_6}}}[A]\)\(\xrightarrow[\Delta ]{{dil.\,{H_2}S{O_4}}}[B]\)

1. A \(\begin{array}{*{20}{c}}
     {C{H_3} - C = CH - C{H_2}C{H_3}} \\ 
     {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
     {C{H_3} - C - C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\;\,\,\,\,\,\,\,\,\,\,\,\,\,} 
   \end{array}\)
2. B \(\begin{array}{*{20}{c}}
     {C{H_2} = C - C{H_2} - C{H_2}C{H_3}} \\ 
     {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
     {CH{{(C{H_3})}_2}\,\,\,\,\,\,\,\,\,\,\,} 
   \end{array}\)
3. C \(\begin{array}{*{20}{c}}
     {C{H_3} - CH - CH = CHC{H_3}} \\ 
     {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
     {CH{{(C{H_3})}_2}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
   \end{array}\)
4. D \(\begin{array}{*{20}{c}}
     {C{H_3} - C = CH - C{H_2}C{H_3}} \\ 
     {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
     {CH{{(C{H_3})}_2}\,\,\,\,\,\,\,\,\,\,\,} 
   \end{array}\)