Question
$(A)\,\,C{H_3} - C{H_2} - C{H_2} - C{O_2}H$ $\begin{array}{*{20}{c}}
{(B)\,\,C{H_3} - CH - C{H_{3\,\,}}} \\
{\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{O_2}H\,\,\,}
\end{array}\,$
{(B)\,\,C{H_3} - CH - C{H_{3\,\,}}} \\
{\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{O_2}H\,\,\,}
\end{array}\,$
$(A)$ and $(B)$ are
