I want to add a description "column a" for the first column, "column b" for the second column, "column c" for the third column. How to do that?
\documentclass{article}
\begin{document}
\begin{figure}[h!]
\includegraphics[width=0.32\textwidth]{example-image-a}
\includegraphics[width=0.32\textwidth]{example-image-b}
\includegraphics[width=0.32\textwidth]{example-image-c}
\includegraphics[width=0.32\textwidth]{example-image-a}
\includegraphics[width=0.32\textwidth]{example-image-b}
\includegraphics[width=0.32\textwidth]{example-image-c}
\includegraphics[width=0.32\textwidth]{example-image-a}
\includegraphics[width=0.32\textwidth]{example-image-b}
\includegraphics[width=0.32\textwidth]{example-image-c}
\caption{Column A $\rightarrow$ Column B $\rightarrow$ Column C. }
\end{figure}
\end{document}



