You must load the following packages after automultiplechoice : fancyvrb, fancybox, pstricks.
To use PSTricks, you have to configure AMC : → → → →
The verbatim environment interferes with AMC LaTeX package, so that it is impossible to use it inside question or questionmult environments... As an example, the following code won't compile:
\begin{question}{program}
What is the return value of the following R code?
\begin{verbatim}
sum(sapply(1:2^2,function(x) { x/2 }))
\end{verbatim}
\begin{choices}[o]
\wrongchoice{2.5}
\correctchoice{5}
\wrongchoice{NaN}
\end{choices}
\end{question}
For very small texts, it is possible to escape all characters that have a special meaning for LaTeX. However, this can become quickly tedious.
\begin{question}{program}
What is the return value of the following R code?
\begin{center}
\texttt{sum(sapply(1:2\textasciicircum 2,function(x) \{ x/2 \}))}
\end{center}
\begin{choices}[o]
\wrongchoice{2.5}
\correctchoice{5}
\wrongchoice{NaN}
\end{choices}
\end{question}
https://www.ctan.org/pkg/verbatim.
You can also record some one-line verbatims with the fancyvrb package (define your verbatim outside, before \onecopy):
\SaveVerb{theRcode}'sum(sapply(1:2^2,function(x) { x/2 }))'
...
\begin{question}{program}
What is the return value of the following R code?
\begin{center}
\UseVerb{theRcode}
\end{center}
\begin{choices}[o]
\wrongchoice{2.5}
\correctchoice{5}
\wrongchoice{NaN}
\end{choices}
\end{question}
For larger verbatims, the verbatimbox package can help you (define your verbatim outside, before \onecopy):
\begin{myverbbox}{\Rcode}
sum(sapply(1:2^2,function(x) { x/2 }))
\end{myverbbox}
...
\begin{question}{program}
What is the return value of the following R code?
\begin{center}
\Rcode
\end{center}
\begin{choices}[o]
\wrongchoice{2.5}
\correctchoice{5}
\wrongchoice{NaN}
\end{choices}
\end{question}
Reading the verbatim from a separate file often helps. As an
example, for a syntax highlighted python code stored in a file named
prog.py in the project directory, you can use