Explanation:
(c)Iodoform test is given by all the compounds having $\begin{array}{*{20}{c}}
{C{H_3} - C - } \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O}
\end{array}\( or \)\begin{array}{*{20}{c}}
{C{H_3} - C - } \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,OH}
\end{array}\,$ group.