નીપજ $(P)$ શું હશે ?

Question

A$\begin{array}{*{20}{c}} {\,\,\,\,\,\,OH} \\ {\,|} \\ {Ph - {\text{ }}C - {\text{ }}Ph} \\ {\,|} \\ {\,\,\,Ph} \end{array}$
B$\begin{array}{*{20}{c}} {\,\,\,\,\,\,OH}\,\,\,\,\, \\ {\,|} \,\,\,\,\\ {Ph - {\text{ }}C - {\text{ }}C{H_3}} \\ {\,|}\,\,\,\,\, \\ {\,\,\,\,\,\,\,C{H_3}}\,\,\, \end{array}$
C$\begin{array}{*{20}{c}} O \\ {||\,} \\ {Ph - {\text{ }}C - {\text{ }}C{H_3}} \end{array}$
D$\begin{array}{*{20}{c}} {\,\,\,O} \\ {\,\,\,\,||\,} \\ {Ph - {\text{ }}C - {\text{ }}Ph} \end{array}$

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Solution

b
excess of $CH_3MgBr$ is used to maximise the yield.

$\begin{matrix}
\begin{matrix}
O\,\,\, \,\,\, \\
||\,\,\,\,\,\, \\
\end{matrix}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
Ph-C-N-O-C{{H}_{3}} \\
|\,\,\,\,\, \\
\,C{{H}_{3}} \\
\end{matrix}$ $\xrightarrow{C{{H}_{3}}MgBr}$ $\begin{matrix}
O\,\,\, \\
||\,\,\, \\
Ph-C-C{{H}_{3}} \\
\end{matrix}$ $\xrightarrow{C{{H}_{3}}MgBr}$ $\begin{matrix}
\begin{matrix}
\overset{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\Theta }{\mathop{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O}}\,\overset{\oplus }{\mathop{Mg}}\,Br \\
|\,\,\,\, \\
\end{matrix} \\
Ph-C-C{{H}_{3}} \\
|\,\,\,\,\, \\
C{{H}_{3}} \\
\end{matrix}$ $\xrightarrow{{{H}^{\oplus }}}$ $\begin{matrix}
\begin{matrix}
\,\,\,OH \\
| \\
\end{matrix}\,\, \\
Ph-C-C{{H}_{3}} \\
|\,\,\,\, \\
\,C{{H}_{3}} \\
\end{matrix}$

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