$\begin{array}{*{20}{c}}
{C{H_3}\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{{H_3}C - C - CH = C{H_2}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3}\,\,\,\,\,\,\,\,\,}
\end{array}$ $\xrightarrow{{{H_2}O/{H^ \oplus }}}{\mkern 1mu} \mathop A\limits_{Major\,product} \, + \,\mathop B\limits_{Minor\,product} $
$[Figure]$ $\xrightarrow{{B{r_2}/hv}}$
$trans-3$ -હેકઝેન $\xrightarrow{(b)}$ meso $3,4-$ હેકઝેનડાયોલ
ઉપરોક્ત માથી $(a, b)$ ની જોડી પસંદ કરો