\documentclass[a4paper]{article}
\usepackage[utf8x]{inputenc} % Required for including letters with accents
\usepackage[T1]{fontenc} % Use 8-bit encoding that has 256 glyphs
\usepackage[francais,box]{automultiplechoice}
\usepackage{fp}

\begin{document}
\bareme{d=N,p=0,b=0,m=0}

%%%% UNCOMMENT BEFORE FINAL PRINT
\onecopy{1}{    

%%% debut de l'en-tête des copies :    
\AMCcodeH{etu}{1}

%%% fin de l'en-tête
\begin{questionmult}{Question1}
%\bareme{d=N,p=0,b=0,m=0}
3 réponses
\begin{choiceshoriz}
\mauvaise{a}
\bonne{b}
\mauvaise{c}
\end{choiceshoriz}
\end{questionmult}

\begin{questionmult}{Question2}    
%\bareme{d=N,p=0,b=0,m=0}
2 réponses
\begin{choiceshoriz}
\bonne{a}
\mauvaise{b}
\end{choiceshoriz}
\end{questionmult}

%\insertgroup[1]{vecteursB}
%\insertgroup[1]{vecteursC}

}   
\end{document}
