Possible Duplicate:
Aligning enumerate labels to top of image?
The current code produces the labels at the lower left corners of the enumerated images.

\documentclass[a6paper]{article}
\usepackage{geometry,graphicx,multicol,enumerate}
\columnsep=5pt
\begin{document}
\begin{enumerate}[\bf 1.]
\item Which is the correct diagram?
\begin{multicols}{2}
\begin{enumerate}[a.]
\item \includegraphics[width=\linewidth]{example-image-A}
\item \includegraphics[width=\linewidth]{example-image-B}
\item \includegraphics[width=\linewidth]{example-grid-100x100pt}
\item \includegraphics[width=\linewidth]{example-image-A}
\item \includegraphics[width=\linewidth]{example-image-B}
\end{enumerate}
\end{multicols}
\item What is your name?
\end{enumerate}
\end{document}
How to put the labels of enumerated images at the middle left of the images?

adjustboxpackage it's easy to position the image as one prefers. However, for languages written from left to right and from top to bottom, the order of the labels seems wrong: "a" and "b" should be in the first row. Never use\bf:\bfseriesis the correct command. – egreg Oct 21 '12 at 10:23